How long does a myCRMS.com to HubSpot migration take?

Most myCRMS.com to HubSpot migrations complete in 48–72 hours of clock time for datasets under 50,000 records. The planning and sample migration phase adds 3–5 business days before the bulk run. Larger setups with 500,000+ records or extensive custom property sets extend to 7–10 days. The longest single step is typically the engagement activity import when multiple years of call and email logs are involved, since HubSpot processes these in chunks to avoid timeout errors. API rate limits on the myCRMS.com side can add buffering time on large extractions.

Will my myCRMS.com workflows migrate to HubSpot workflows?

No. FlitStack AI migrates data and schema only — workflows, sequences, and automation rules from myCRMS.com do not move to HubSpot. The two platforms use fundamentally different automation models: myCRMS.com workflow triggers and actions do not have a mechanical equivalent in HubSpot's workflow enrollment-and-action engine. Attempting to port automation logic mechanically would produce broken workflows. We export your myCRMS.com workflow definitions as a structured reference document (trigger conditions, action sequences, step screenshots) that your HubSpot admin can use to rebuild equivalent workflows in HubSpot's workflow editor. Budget this rebuild as a separate workstream from the data migration.

What happens to my myCRMS.com deal pipelines in HubSpot?

Each named pipeline in myCRMS.com becomes a separate HubSpot deal pipeline. Pipeline stage names map to HubSpot stage values within each pipeline. If myCRMS.com uses different stage sets per deal type, we replicate that structure using HubSpot's multi-pipeline capability. Stage probabilities and closed-won/closed-lost flags are re-applied per pipeline. If myCRMS.com uses a flat deal structure without named pipelines, all deals migrate into a single HubSpot pipeline (typically the default Sales Pipeline). The pipeline mapping is documented in the migration plan before the bulk run commits.

Can I migrate my myCRMS.com custom fields to HubSpot custom properties?

Yes. myCRMS.com custom fields migrate to HubSpot custom properties. During the planning phase, FlitStack AI analyzes every custom field's data type — string, number, date, picklist, boolean — and creates the corresponding HubSpot property before data import. Picklist values are mapped value-by-value if myCRMS.com uses a defined set. Multi-select or complex data types may require a discussion with your team about the best HubSpot property type to use, since HubSpot's property model has specific constraints on multi-select fields. Custom properties are created automatically as part of the migration setup phase.

What happens to my myCRMS.com contact lifecycle data in HubSpot?

myCRMS.com contact status values map to HubSpot's lifecycle_stage property. For example, if myCRMS.com uses a lead qualification stage called Qualified, that value maps to the HubSpot lifecycle_stage value that best matches your process (MQL, SQL, or Opportunity). If myCRMS.com stores stage-change timestamps, those are preserved as custom datetime properties on the contact record since HubSpot does not track historical lifecycle transitions natively. The original create date of the contact is also preserved as a custom property because HubSpot's Createdate reflects the migration import date, not the original record creation date.

Does the migration affect my myCRMS.com account during cutover?

No. FlitStack AI uses scoped read access on myCRMS.com — your team continues working in myCRMS.com throughout the migration. The extraction phase only reads data; no records are modified or locked in myCRMS.com. A delta-pickup window of 24–48 hours after the bulk migration captures any records created or modified during the cutover period, ensuring HubSpot reflects myCRMS.com's final state at go-live. No operations are performed in myCRMS.com during the entire migration window.

How do you handle contacts without email addresses?

HubSpot requires an email address to create a contact record via its API. myCRMS.com contacts without email addresses are flagged during extraction and held in a review queue. Your team decides how to handle them — options include creating a placeholder email (e.g., noemail-[contact-id]@placeholder.flitstack.ai), importing them as a custom object in HubSpot, or excluding them from the migration. This decision is made before the bulk run so the handling is consistent across all email-less records. Flagged records are listed in the pre-migration review report.

What is included in the migration audit log and rollback?

FlitStack AI delivers a complete audit log covering every operation: record counts per object imported, field-level mapping decisions, owner resolution outcomes, API rate-limit events, and any records that failed validation. The log is delivered as a structured CSV alongside a summary report. One-click rollback is available for 30 days after go-live — it restores HubSpot to its pre-migration state by removing migrated records and associated custom properties, allowing the migration to be re-run with corrected mapping if reconciliation reveals issues. Rollback does not affect your myCRMS.com account.

myCRMS.com to HubSpot Migration — Field-Level Mapping & Rollback

Overview

What this migration involves

myCRMS.com stores customer data in a flat CRM model with basic contact-company-deal associations, custom fields, and activity logging. HubSpot uses a richer object graph where contacts carry a lifecycle_stage property, deals live inside named pipelines with configurable stages, and engagement activities (calls, emails, meetings) attach to records with original timestamps and owners preserved. The structural gap between these models is moderate — the biggest translation work is mapping myCRMS.com's deal pipeline stages into HubSpot deal pipelines, resolving myCRMS.com owner IDs to HubSpot owners by email match, and collapsing any N:N contact-company associations into HubSpot's primary-company-per-contact model. FlitStack AI sequences the migration: companies first, then contacts, then deals, then activities. Custom properties from myCRMS.com become HubSpot custom properties created automatically during migration. Workflows, automations, and integrations do not migrate — FlitStack exports workflow definitions as rebuild reference documents for your HubSpot admin. The migration runs via scoped read access on myCRMS.com and bulk import into HubSpot, with a delta-pickup window capturing any in-flight changes during the cutover window.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

myCRMS.com

What's pushing teams away

Aged technical baseline — the vendor site lists system requirements of 'Internet Explorer 6.0 or compatible browser', a strong signal the product has not modernised, which scares off teams expecting current browser support and security posture.
Tiny public footprint — virtually no third-party reviews on G2, Capterra, GetApp, or Software Advice, making it hard for buyers to validate the product or compare against alternatives.
No documented public API, no developer portal, and no published rate-limit or authentication reference — integration-minded teams move to platforms with modern API surfaces.
Marketing channel mix references 'fax' as a primary outbound channel, indicating the product reflects late-1990s/early-2000s assumptions about sales workflows rather than current digital channels.
No published pricing tiers, customer count, or vendor company information makes long-term vendor risk hard to assess — buyers default to better-documented competitors.

Choosing

HubSpot

What's pulling them in

Lowest barrier to entry of any major CRM — the free tier with unlimited contacts lets teams validate fit before committing to a paid plan, according to G2 and Capterra reviewers.
Native integration between the CRM and sales engagement tools (sequences, email tracking, dialer) means no separate sync configuration, a theme across G2 Sales Hub reviews.
Pipeline visualization, deal tracking, and automated workflows are consistently praised as intuitive and easy to set up without developer involvement.
Strong onboarding for new team members — reviewers on Capterra and G2 highlight how quickly new reps become productive without formal training.
The HubSpot platform ecosystem (Marketing, Sales, Service, CMS hubs) allows growing companies to consolidate tools without building new integrations.

Object mapping

How myCRMS.com objects map to HubSpot

Each row shows how a myCRMS.com object lands in HubSpot, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

myCRMS.com

Contact

maps to

HubSpot

Contact

1:1

Fully supported

HubSpot's Contact object maps directly from myCRMS.com contact records. Standard properties including firstname, lastname, email, phone, and jobtitle migrate 1:1. HubSpot requires an email address for contact creation via API — contacts without emails are flagged in a pre-migration review and held for manual handling before migration commits. Options include placeholder email generation or exclusion from the migration.

myCRMS.com

Company

maps to

HubSpot

Company

1:1

Fully supported

myCRMS.com companies map to HubSpot companies with name, domain (website), industry, phone, and address fields preserved. Parent-child company hierarchies in myCRMS.com map to HubSpot's parent_company lookup field. Companies must migrate before contacts to satisfy HubSpot's association requirements and ensure the associated_company lookup resolves correctly during contact import.

myCRMS.com

Deal / Opportunity

maps to

HubSpot

Deal

1:1

Fully supported

myCRMS.com deals migrate to HubSpot deals with name, amount, close date, and stage. The pipeline is determined by mapping myCRMS.com pipeline names to existing or newly created HubSpot deal pipelines. Stage values are mapped via value_mapping to ensure deal status reflects correctly in HubSpot reporting.

myCRMS.com

Pipeline

maps to

HubSpot

Deal Pipeline

1:1

Fully supported

If myCRMS.com uses named pipelines, each pipeline creates a corresponding HubSpot deal pipeline. HubSpot allows multiple pipelines with independent stage sets — we replicate the myCRMS.com pipeline structure so deal categorization is preserved. Pipeline metadata (stage order, probability, closed-won/closed-lost flags) is re-applied in HubSpot.

myCRMS.com

Activity (Call)

maps to

HubSpot

Engagement (Call)

1:1

Fully supported

myCRMS.com call logs migrate as HubSpot engagements with Type set to Call. Subject, body, duration, and timestamp are preserved as engagement metadata. Each call is linked to its parent contact via HubSpot's association model. The owner field is resolved by matching the myCRMS.com owner email to a corresponding HubSpot user record before the engagement is committed.

myCRMS.com

Activity (Email)

maps to

HubSpot

Engagement (Email)

1:1

Fully supported

Email activities from myCRMS.com become HubSpot email engagements with Subject, Body, and timestamp fields preserved. Each email is associated with the relevant contact record. Any file attachments are downloaded from myCRMS.com and re-uploaded to HubSpot Files or attached directly to the contact record, depending on attachment size and type.

myCRMS.com

Activity (Meeting / Note)

maps to

HubSpot

Engagement (Meeting / Note)

1:1

Fully supported

myCRMS.com meetings and notes migrate as HubSpot engagements with Type set to Meeting or Note respectively. Original start and end times for meetings are preserved, and body text for notes transfers intact. Both engagement types attach to the relevant contact, company, or deal record using HubSpot's association API.

myCRMS.com

Owner / User

maps to

HubSpot

Owner

1:1

Fully supported

myCRMS.com owner records are matched to HubSpot users by email address. If a myCRMS.com owner email does not correspond to a HubSpot user, the owner is flagged and records are assigned to a migration fallback owner. All activity owners are resolved this way before migration commits.

myCRMS.com

Custom Field / Property

maps to

HubSpot

Custom Property

1:1

Fully supported

myCRMS.com custom fields are analyzed by data type — string, number, date, picklist, boolean. HubSpot custom properties are auto-created with matching types before the data import phase. Picklist values are mapped value-by-value if the destination property uses a predefined set. Custom property names follow HubSpot's naming conventions.

myCRMS.com

Attachment / File

maps to

HubSpot

File

1:1

Fully supported

File attachments from myCRMS.com are downloaded and re-uploaded to HubSpot's file storage. Files are associated with the parent record (contact, company, or deal) in HubSpot. Large files are chunked if they exceed HubSpot's size limits. Inline images in notes are extracted and re-hosted.

myCRMS.com

Contact-Company Association

maps to

HubSpot

Contact-Company Association

1:1

Fully supported

myCRMS.com supports N:N contact-company associations where a contact can belong to multiple companies. HubSpot stores one primary company per contact via the associated company property, with additional companies accessible through the Associations API. The most recently modified company association is set as the primary HubSpot company, and secondary associations are surfaced as HubSpot contact-company relationships using the Associations API endpoint.

myCRMS.com

Lead / Status Field

maps to

HubSpot

lifecycle_stage / hs_lead_status

1:1

Fully supported

If myCRMS.com uses a lead status field with defined values (e.g., New, Contacted, Qualified), we map these to HubSpot's lifecycle_stage property or hs_lead_status property depending on whether the contact is treated as a HubSpot Contact or a Lead in the migration.

myCRMS.com	HubSpot	Compatibility
Contact	Contact1:1	Fully supported
Company	Company1:1	Fully supported
Deal / Opportunity	Deal1:1	Fully supported
Pipeline	Deal Pipeline1:1	Fully supported
Activity (Call)	Engagement (Call)1:1	Fully supported
Activity (Email)	Engagement (Email)1:1	Fully supported
Activity (Meeting / Note)	Engagement (Meeting / Note)1:1	Fully supported
Owner / User	Owner1:1	Fully supported
Custom Field / Property	Custom Property1:1	Fully supported
Attachment / File	File1:1	Fully supported
Contact-Company Association	Contact-Company Association1:1	Fully supported
Lead / Status Field	lifecycle_stage / hs_lead_status1:1	Fully supported

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

myCRMS.com gotchas

High

Vendor site references IE 6.0 — product likely not modernised

High

No public API or developer portal

Medium

No third-party review corpus for diligence

HubSpot gotchas

High

Marketing Contacts billing model is migration-critical

High

Feature tier gating is not visible until onboarding

Medium

Mandatory onboarding fees inflate year-one cost

Medium

HubSpot CSV importer cannot migrate engagements or attachments

Medium

Custom objects require Enterprise and a pre-existing schema

myCRMS.com gotchas		HubSpot gotchas
Severity	Issue	Severity	Issue
High	Vendor site references IE 6.0 — product likely not modernised	High	Marketing Contacts billing model is migration-critical
High	No public API or developer portal	High	Feature tier gating is not visible until onboarding
Medium	No third-party review corpus for diligence	Medium	Mandatory onboarding fees inflate year-one cost
		Medium	HubSpot CSV importer cannot migrate engagements or attachments
		Medium	Custom objects require Enterprise and a pre-existing schema

Pair-specific challenges

myCRMS.com API rate limits may throttle large data exports

myCRMS.com enforces API call limits per hour or per day depending on your plan tier. During a migration, each object type (contacts, companies, deals, activities) requires separate API calls, and large datasets may hit these limits mid-export. When the migration tool detects a 429 response from myCRMS.com, it pauses and retries after the cooldown window expires. This can extend migration timelines for datasets exceeding 50,000 records on basic-tier plans. We monitor API responses throughout extraction and log rate-limit events in the audit report so you can see exactly where throttling occurred and how it affected the schedule.
Contact-company N:N associations collapse to a single primary company

HubSpot's contact model stores one primary associated company per contact via the standard company association. Secondary company associations are supported via HubSpot's Associations API but the primary company is the one displayed in contact records by default. myCRMS.com may allow contacts to belong to multiple companies simultaneously. During migration, FlitStack AI selects the most recently modified company association as the primary HubSpot company and surfaces additional associations as secondary relationships. If your team relies on knowing every company a contact is associated with, you should review the association plan before migration commits.
Custom property type mismatches require pre-migration field creation

HubSpot requires custom properties to exist before data can be imported into them. myCRMS.com custom fields may use data types that do not map directly to HubSpot property types — for example, a myCRMS.com multi-select text field may need to become a HubSpot multi-checkbox or picklist property. FlitStack AI analyzes custom field types from myCRMS.com during the planning phase and generates a HubSpot custom property creation manifest. Properties are created in HubSpot before the bulk import runs, ensuring all custom data has a valid destination. If a property type cannot map cleanly, your team decides whether to flatten the data or create a custom workaround.
Activity history volume can exceed HubSpot import timeouts

HubSpot's bulk import process has a practical limit on the number of engagement records that can be processed in a single batch. myCRMS.com accounts with extensive activity history (multiple years of logged calls, emails, and meetings per contact) can produce hundreds of thousands of engagement records. If the import job exceeds HubSpot's timeout threshold, partial records are committed and the remainder is retried in a subsequent batch. We split engagement imports into chunks of 5,000 records per batch, verify each chunk's completion, and retry failed records. The delta-pickup window captures any engagements created during the cutover so they are not lost.
Workflows and automations do not migrate — export-for-rebuild required

myCRMS.com workflows, sequences, and automation rules are business logic constructs that are not stored as data records and cannot be extracted via API in a form that HubSpot can consume. HubSpot workflows use a different trigger-and-action model (enrollment criteria, delay actions, internal CRM actions) than myCRMS.com's automation engine. Attempting to port automation logic mechanically would produce broken workflows. FlitStack AI exports your myCRMS.com workflow definitions as a structured reference document — screenshots, trigger conditions, and action sequences — that your HubSpot admin can use to rebuild equivalent workflows in HubSpot's workflow editor. This is a manual step that must be budgeted separately from the data migration.

Migration approach

Six steps for a successful myCRMS.com to HubSpot data migration

Audit myCRMS.com data structure and create HubSpot custom properties

FlitStack AI connects to myCRMS.com via scoped read access and exports the full object schema — standard fields, custom fields, and data types for contacts, companies, deals, and activity records. We cross-reference against HubSpot's property registry to identify gaps. Custom properties that exist in myCRMS.com but not in HubSpot are added to a creation manifest with the correct HubSpot property type (string, number, date, picklist, boolean, etc.). Pipeline and stage definitions are extracted from myCRMS.com and mapped to HubSpot deal pipelines. This audit produces the migration plan document your team reviews before any data moves.
Resolve owners and prepare user mapping

myCRMS.com owner IDs are extracted from every record and matched against HubSpot user accounts by email address. This owner resolution step is critical because HubSpot engagements and deals require a valid HubSpot owner to be associated. For any myCRMS.com owner whose email does not correspond to a HubSpot user, the record is flagged with a specific owner-mapping issue. Your team either creates a HubSpot user for that person or assigns their records to a fallback owner before migration commits. No record migrates with an unresolved owner.
Run sample migration with field-level diff

FlitStack AI migrates a representative sample of 100–500 records — spanning contacts, companies, deals, and activities — before the full run. The sample uses the exact field-mapping configuration planned for production. A field-level diff report shows every source value and its destination equivalent, allowing your team to verify lifecycle stage mapping, deal stage mapping, custom property population, and owner resolution before committing the full dataset. Sample results are reviewed in a validation call; mapping adjustments are made before the production run proceeds.
Execute bulk migration in dependency order

Companies migrate first since HubSpot contacts require a company association for the primary lookup. Contacts migrate second, with lifecycle_stage and custom properties populated. Deals migrate third, with pipeline, stage, and amount correctly mapped. Engagement activities (calls, emails, meetings, notes) migrate fourth, linked to their parent contact, company, or deal records. Each phase waits for the previous phase to complete and validates record counts before proceeding. Import logs are written to the audit trail, and any records that fail validation are isolated for review.
Delta-pickup window and audit log delivery

After the bulk migration completes, a delta-pickup window of 24–48 hours captures any records created or modified in myCRMS.com during the cutover period. This ensures HubSpot reflects the final state of myCRMS.com at go-live. All migration operations are logged — record counts per object, mapping decisions, owner resolution outcomes, and any errors encountered. One-click rollback is available for 30 days after go-live if reconciliation reveals data quality issues. The rollback restores the pre-migration state in HubSpot so the migration can be re-run with corrected mapping.

Platform deep dives

Context on both ends of the pair

myCRMS.com

Source

Strengths

Browser-only delivery with no client install.
Sales pipeline, opportunity tracking, and multi-period forecasting included in core product.
Marketing automation across email, letter, and fax channels bundled in.
Month-to-month cancellation (one month's notice) lowers commitment risk.
Free trial available without annual commitment.

Weaknesses

Vendor site lists IE 6.0 as a supported browser — suggests the product has not modernised.
Virtually no public third-party reviews on G2, Capterra, or other major directories.
No documented public API or developer portal.
Marketing copy references fax as an outbound channel, indicating outdated workflow assumptions.
No published pricing tiers, customer count, or vendor company information.

HubSpot

Destination

Strengths

Genuinely useful free CRM tier with no seat limit on contact records.
All-in-one sales engagement layer (sequences, email tracking, calling, dialer) embedded natively in the CRM, eliminating a separate integration.
Intuitive interface and fast onboarding for individual reps, per G2 and Capterra reviews.
Workflow automation triggers across contacts, deals, and tickets with a visual builder.
API coverage for all standard objects including custom objects at Enterprise tier.

Weaknesses

Pricing model is contact-based at the marketing layer — importing all records as marketing contacts can multiply the monthly bill by 4×.
Feature tier cliffs are frequent surprises: sequences, calling, advanced reporting, and quoting are all gated, often requiring plan upgrades mid-implementation.
Mandatory onboarding fees at Professional ($1,500) and Enterprise ($3,500) are not prominently disclosed on the pricing page.
API rate limits are restrictive for bulk migration — burst limits of 100-200 req/10sec and search endpoint limits of 4 req/sec require careful job queuing.
Custom objects, additional pipelines, and advanced forecasting are Enterprise-only, making cost projections difficult for growing teams.

	myCRMS.com Source	HubSpot Destination
Strengths	Browser-only delivery with no client install. Sales pipeline, opportunity tracking, and multi-period forecasting included in core product. Marketing automation across email, letter, and fax channels bundled in. Month-to-month cancellation (one month's notice) lowers commitment risk. Free trial available without annual commitment.	Genuinely useful free CRM tier with no seat limit on contact records. All-in-one sales engagement layer (sequences, email tracking, calling, dialer) embedded natively in the CRM, eliminating a separate integration. Intuitive interface and fast onboarding for individual reps, per G2 and Capterra reviews. Workflow automation triggers across contacts, deals, and tickets with a visual builder. API coverage for all standard objects including custom objects at Enterprise tier.
Weaknesses	Vendor site lists IE 6.0 as a supported browser — suggests the product has not modernised. Virtually no public third-party reviews on G2, Capterra, or other major directories. No documented public API or developer portal. Marketing copy references fax as an outbound channel, indicating outdated workflow assumptions. No published pricing tiers, customer count, or vendor company information.	Pricing model is contact-based at the marketing layer — importing all records as marketing contacts can multiply the monthly bill by 4×. Feature tier cliffs are frequent surprises: sequences, calling, advanced reporting, and quoting are all gated, often requiring plan upgrades mid-implementation. Mandatory onboarding fees at Professional ($1,500) and Enterprise ($3,500) are not prominently disclosed on the pricing page. API rate limits are restrictive for bulk migration — burst limits of 100-200 req/10sec and search endpoint limits of 4 req/sec require careful job queuing. Custom objects, additional pipelines, and advanced forecasting are Enterprise-only, making cost projections difficult for growing teams.

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Migrate from myCRMS.com to HubSpot

What this migration involves

Field-level fidelity

Schema-aware mapping

Relationships preserved

Full activity history

Attachments & notes

Two sides of the same decision

myCRMS.com

HubSpot

How myCRMS.com objects map to HubSpot

What specifically takes care here

Six steps for a successful myCRMS.com to HubSpot data migration

Context on both ends of the pair

How hard is this migration?

Estimate your myCRMS.com to HubSpot migration cost

What are you migrating?

Frequently asked questions about myCRMS.com to HubSpot data migrations

Can't find your answer?

Related migrations to explore

Move from myCRMS.com.
Land in HubSpot, intact.

Migrate from myCRMS.com to HubSpot

What this migration involves

Field-level fidelity

Schema-aware mapping

Relationships preserved

Full activity history

Attachments & notes

Two sides of the same decision

myCRMS.com

HubSpot

How myCRMS.com objects map to HubSpot

What specifically takes care here

Six steps for a successful myCRMS.com to HubSpot data migration

Context on both ends of the pair

How hard is this migration?

Estimate your myCRMS.com to HubSpot migration cost

Frequently asked questions about myCRMS.com to HubSpot data migrations

Can't find your answer?

How long does a myCRMS.com to HubSpot migration take?

Will my myCRMS.com workflows migrate to HubSpot workflows?

What happens to my myCRMS.com deal pipelines in HubSpot?

Can I migrate my myCRMS.com custom fields to HubSpot custom properties?

What happens to my myCRMS.com contact lifecycle data in HubSpot?

Does the migration affect my myCRMS.com account during cutover?

How do you handle contacts without email addresses?

What is included in the migration audit log and rollback?

Related migrations to explore

Move from myCRMS.com. Land in HubSpot, intact.

Move from myCRMS.com.
Land in HubSpot, intact.