CRM migration
Field-level mapping, validation, and rollback between ConvergeHub and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
ConvergeHub
Source
Mailchimp
Destination
Compatibility
7 of 10
objects map 1:1 between ConvergeHub and Mailchimp.
Complexity
BStandard
Timeline
2-3 weeks
Overview
ConvergeHub is a full SMB CRM with Leads, Accounts, Contacts, Deals, Cases, Invoices, and workflow automation. Mailchimp is an email marketing platform built around Audiences, Campaigns, Tags, and automated customer journeys. The migration scope is deliberately narrow: we extract ConvergeHub Contacts and Leads, map them to Mailchimp Subscribers with merge field translation, apply tag strategies from ConvergeHub segments, and migrate subscription preferences. We do not migrate Deals, Cases, Invoices, Products, Activities, Targets, Quotations, or Automations because Mailchimp has no corresponding object model. The result is a clean Mailchimp Audience with historical contact data and segment logic, ready for campaign sends and journey triggers, while the customer rebuilds any lost automation logic inside Mailchimp's customer journey builder.
Every standard and custom field arrives verified.
AI proposes the map; you confirm before any record moves.
Parent–child, lookups, and ownership stay linked.
Calls, emails, meetings — with original timestamps.
Documents, uploads, and inline notes move with the record.
Why teams make this switch
Leaving
What's pushing teams away
Choosing
What's pulling them in
Object mapping
Each row shows how a ConvergeHub object lands in Mailchimp, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
ConvergeHub
Contact
Mailchimp
Subscriber
1:1ConvergeHub Contacts migrate to Mailchimp Subscribers within the destination Audience. We map email address as the subscriber key (email_id), first name to FNAME, last name to LNAME, phone to PHONE, and any custom fields to Mailchimp merge fields (created as MERGEname format during scoping). Contact status in ConvergeHub (Active, Inactive) maps to subscribed/unsubscribed in Mailchimp. The Contact-to-Account linkage is preserved by creating a Mailchimp Company merge field carrying the Account name for reference.
ConvergeHub
Lead
Mailchimp
Subscriber
1:1ConvergeHub Leads with a populated email address migrate to Mailchimp Subscribers. Leads without an email address are flagged during scoping because Mailchimp requires a valid email for subscriber creation. Lead source, Lead status, and owner assignment are preserved in custom merge fields lead_source__c, lead_status__c, and owner_email__c so the customer can segment new subscribers by original lead origin.
ConvergeHub
Account
Mailchimp
Company
lossyMailchimp supports a Company merge field and the Audiences -> Contact profiling feature which lets subscribers associate with a Company profile. We map ConvergeHub Account name to Company, Account industry to Industry, and Account size to the related Company merge fields. Company relationships are used for segmentation in Mailchimp but do not become separate objects; the subscriber remains the primary record.
ConvergeHub
Contact / Lead Segment
Mailchimp
Tag
lossyConvergeHub segments (static or dynamic lists based on filter criteria) are translated to Mailchimp Tags. We document each ConvergeHub segment's filter logic during scoping and recreate equivalent Mailchimp Tagging rules or Segments using the same criteria. Tags enable the customer to re-run segments in Mailchimp as new contacts are added.
ConvergeHub
Subscription preference
Mailchimp
Marketing Permission
lossyConvergeHub's email opt-in and opt-out flags on Contact and Lead records map to Mailchimp's GDPR and marketing consent fields. We preserve consent language, opt-in date, and consent source in merge fields for compliance. Unsubscribed and bounced contacts from ConvergeHub are imported as suppressed contacts in Mailchimp to prevent accidental re-sending.
ConvergeHub
Custom Field
Mailchimp
Merge Field
1:1ConvergeHub custom fields on Contacts and Leads (such as custom picklists, text fields, date fields, and numeric fields) are created as Mailchimp Merge Fields during setup. Picklist values from ConvergeHub become merge field option labels. Date fields are stored as text in YYYY-MM-DD format. Multi-select fields are concatenated with a delimiter. The customer chooses merge field names during scoping to match Mailchimp naming conventions.
ConvergeHub
Deal
Mailchimp
None
1:1ConvergeHub Deals (pipeline opportunities with stage, value, probability, and owner) have no equivalent object in Mailchimp. Mailchimp tracks customer interactions but does not maintain a sales pipeline. We export Deal records as a CSV for the customer's reference and note that pipeline data does not migrate. If the customer needs pipeline tracking post-migration, they should retain ConvergeHub for Deal management or adopt a separate CRM.
ConvergeHub
Case
Mailchimp
None
1:1ConvergeHub Cases (support tickets with priority, status, subject, and linked Contact or Account) have no equivalent in Mailchimp. Case history, support interactions, and case-related notes do not migrate. If the customer maintains a customer service operation, they need a dedicated helpdesk platform post-migration.
ConvergeHub
Activity (Call, Meeting, Task)
Mailchimp
None
1:1ConvergeHub Activities (logged calls, tasks, events, and meeting records) do not map to Mailchimp. Mailchimp tracks opens, clicks, and unsubscribes for email campaigns, but not the historical activity timeline from a CRM. We do not migrate activity records. The customer should preserve activity history in an exported CSV if needed for compliance or audit purposes.
ConvergeHub
Invoice / Product
Mailchimp
None
1:1ConvergeHub Invoices and Products have no Mailchimp equivalent. Invoice records, line items, payment status, and product catalog data do not migrate. If the customer uses ConvergeHub for billing and needs to retain this history, they should export to CSV before migration and consider a dedicated accounting platform post-migration.
| ConvergeHub | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact | Subscriber1:1 | Fully supported | |
| Lead | Subscriber1:1 | Fully supported | |
| Account | Companylossy | Fully supported | |
| Contact / Lead Segment | Taglossy | Fully supported | |
| Subscription preference | Marketing Permissionlossy | Fully supported | |
| Custom Field | Merge Field1:1 | Fully supported | |
| Deal | None1:1 | Fully supported | |
| Case | None1:1 | Fully supported | |
| Activity (Call, Meeting, Task) | None1:1 | Fully supported | |
| Invoice / Product | None1:1 | Fully supported |
Gotchas + challenges
Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.
ConvergeHub gotchas
No public API for automated data extraction
Automation rules cannot be migrated automatically
Custom field types and picklist values need explicit mapping
Lifetime deal data portability is unknown
Account-Contact-Deal relationship chains must be preserved manually
Mailchimp gotchas
Contact count includes unsubscribed and non-subscribed records
Automation workflows cannot be exported
Account suspensions trigger silently during migration
Template HTML is Mailchimp-specific and may not render in other platforms
E-commerce data requires active store connection
Pair-specific challenges
Migration approach
Discovery and export preparation
We request CSV exports from ConvergeHub for Contacts, Leads, and Accounts. We also request any static or dynamic lists the customer uses for segmentation. We verify export completeness by comparing record counts against ConvergeHub's UI counts. If the customer holds an AppSumo lifetime deal, we verify export permissions. We also request the customer provide a list of ConvergeHub automation rules in screenshot or written form so we can document them for the rebuild inventory.
Audience setup and merge field creation
We create the Mailchimp Audience with the correct default fields (Email Address, FNAME, LNAME, PHONE) and pre-create all required Merge Fields based on the ConvergeHub custom field inventory. We configure GDPR compliance fields, marketing permission fields, and any company or industry merge fields. We set up the initial Tags corresponding to ConvergeHub segments and document the segment logic translation. Suppression lists (unsubscribed and bounced contacts) are imported before the main subscriber load to prevent re-subscription.
Data cleaning and deduplication
We clean the ConvergeHub CSV exports for encoding issues, trailing whitespace, malformed email addresses, and missing required fields. We run the email deduplication pass to resolve ConvergeHub records sharing the same email address, keeping the more complete record based on the customer's approved rule. We flag any records missing an email address (common for Leads with only phone or company name) for the customer's decision: remove or supplement with a valid address before import.
Subscriber import with merge field mapping
We import Contacts and Leads into Mailchimp using the platform's native CSV import with merge field mapping confirmed before upload. We import in batches to avoid timeouts and verify row counts against the source CSV. After import, we reconcile subscriber counts in Mailchimp against ConvergeHub totals and flag any discrepancies for investigation. Tag assignments are applied post-import based on the ConvergeHub segment logic documented during scoping.
Validation and suppression audit
We audit the imported Audience for bounced emails, invalid formats, and duplicate entries that survived deduplication. We verify merge field values are populated correctly across a random sample of 25-50 records. We confirm the suppression list contains all unsubscribed and bounced contacts from ConvergeHub and that no suppressed address appears as an active subscriber. The customer reviews a sample import report and approves before go-live.
Cutover and automation rebuild handoff
We freeze ConvergeHub contact updates during a short cutover window, run a final delta export of any new or modified contacts since initial export, and import the delta into Mailchimp. We deliver the automation rebuild inventory documenting each ConvergeHub workflow trigger, conditions, and actions mapped to a recommended Mailchimp Customer Journey equivalent. The customer configures their own Customer Journeys post-migration. We do not rebuild ConvergeHub automations as Mailchimp automations inside the migration scope.
Platform deep dives
ConvergeHub
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across ConvergeHub and Mailchimp.
Object compatibility
2 of 8 objects need a mapping; the rest are 1:1.
Field mapping clarity
Field mapping is derived from defaults — final spec confirmed during the sample migration.
Timeline complexity
8-object category — typical timelines run 2–7 days end-to-end.
API constraints
ConvergeHub: Not publicly documented.
Data volume sensitivity
ConvergeHub doesn't expose a bulk API — REST + parallelization used for high-volume runs.
Estimator
Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.
Step 1
Pick a category, then your source and destination platforms.
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FAQ
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