CRM migration
Field-level mapping, validation, and rollback between Manta Business Management Software and Nutshell. We move data and schema; workflows are rebuilt natively in Nutshell.
Manta Business Management Software
Source
Nutshell
Destination
Compatibility
8 of 8
objects map 1:1 between Manta Business Management Software and Nutshell.
Complexity
CModerate
Timeline
1-3 weeks
Overview
Moving from Manta Business Management Software to Nutshell is a structural migration for small businesses that need a genuine CRM after paying $99 per seat per month for a platform with only two G2 reviews and no published API. Nutshell offers 1,245 verified reviews, a 95% ease-of-use rating, starting at $16 per seat per month, and a documented REST API that makes migration tooling straightforward. We extract records from whatever export Manta BMS exposes, flag any data that cannot be cleanly extracted or mapped, and load Contacts, Companies, Deals, and Activities into Nutshell using the REST API with batch chunking and rate-limit handling. Custom fields, attachments, and any automation or workflow configurations do not migrate; we document them for the customer to rebuild manually in Nutshell's settings.
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 Manta Business Management Software object lands in Nutshell, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Manta Business Management Software
Contact
Nutshell
Person
1:1Manta BMS Contact records map to Nutshell Person records. Standard fields (name, email, phone, address) transfer directly. Contact-company linkage is preserved if the Manta export includes an account or company reference field; if not, we rebuild the linkage during import by matching company name against Nutshell Organizations. Any Manta custom fields on contacts are flagged as non-migratable due to the lack of a documented Manta BMS schema.
Manta Business Management Software
Company
Nutshell
Organization
1:1Manta BMS Company records map to Nutshell Organization records. Company name, industry, size, website, and address fields transfer directly. Organization is created before Person import so that the relationship lookup is satisfied at the moment of contact insert. If the Manta export includes multiple address fields (billing, shipping), we consolidate them into the primary address field in Nutshell and note the split address types in the reconciliation report.
Manta Business Management Software
Lead
Nutshell
Lead
1:1Manta BMS Lead records map directly to Nutshell Lead. We preserve lead source, status, assigned owner, and any custom fields that can be identified in the export. Lead lifecycle stages are platform-specific; we map them to Nutshell's lead status values and document the mapping so the customer's admin can adjust status labels post-import. Owner assignment transfers by email match against Nutshell Users.
Manta Business Management Software
Deal
Nutshell
Target
1:1Manta BMS Deal records map to Nutshell Target records, which represent opportunities in Nutshell's pipeline. Deal name, value, stage, expected close date, and associated contact and company links transfer directly. Nutshell's pipeline stage values replace Manta's stage names; we document the stage mapping during scoping so the customer's admin confirms the mapping before import. Deal notes and custom fields are flagged if the Manta export schema does not expose them clearly.
Manta Business Management Software
Activity (calls, emails, tasks, meetings)
Nutshell
Activities (Task, Event, Email)
1:1Manta BMS Activity records map to Nutshell Activity records. Call logs map to Tasks with type = call, meeting records map to Events, and email records map to Email records. We preserve timestamps, duration, disposition, and associated contact or deal links where available in the export. If Manta BMS exports activities with a flat structure (no linked contact reference), we attempt to reconstruct the contact link by matching email addresses from the activity record against imported Persons.
Manta Business Management Software
User / Owner
Nutshell
User
1:1Manta BMS User or Owner records map to Nutshell User. We match by email address and resolve role and active/inactive status. Any Manta User that has no matching Nutshell User goes to a reconciliation queue for the customer's admin to provision before record import resumes. Archived Manta users are migrated as inactive Nutshell users so that historical assignment records remain intact.
Manta Business Management Software
Custom Fields
Nutshell
Custom Fields
1:1Custom fields defined in Manta BMS do not migrate. The platform does not expose custom field definitions through any documented export format or API, so we cannot reliably identify, extract, or remap them. We flag all custom fields during scoping with a note that the customer's admin should recreate them in Nutshell after migration. Nutshell supports custom fields on Person, Organization, Lead, and Target records from its settings panel.
Manta Business Management Software
Attachments
Nutshell
Attachments
1:1Attachments stored in Manta BMS do not migrate. No public export endpoint or documented file storage access was found for Manta BMS, and binary file handling falls outside standard CRM migration scope. We recommend that customers export attachments manually through Manta's interface before the migration date and reattach them in Nutshell post-migration.
| Manta Business Management Software | Nutshell | Compatibility | |
|---|---|---|---|
| Contact | Person1:1 | Fully supported | |
| Company | Organization1:1 | Fully supported | |
| Lead | Lead1:1 | Fully supported | |
| Deal | Target1:1 | Fully supported | |
| Activity (calls, emails, tasks, meetings) | Activities (Task, Event, Email)1:1 | Fully supported | |
| User / Owner | User1:1 | Fully supported | |
| Custom Fields | Custom Fields1:1 | Not supported | |
| Attachments | Attachments1:1 | Not 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.
Manta Business Management Software gotchas
No documented public API for data export
Custom fields are not migratable
Extremely limited review and technical data
Brand confusion with manta.com directory and Manta Flow (IBM)
Nutshell gotchas
Contact tier limits enforced on import
No bulk API endpoint requires paginated extraction
Email sequences not exportable via API
Foundation plan disables key sales features
Pair-specific challenges
Migration approach
Discovery and export verification
We audit Manta BMS for available export formats, record counts per object type (Contacts, Companies, Leads, Deals, Activities), custom field presence, and user count. The key constraint is that Manta BMS does not publish a documented API, so export verification is the critical first step. We determine whether a full CSV or JSON export is accessible through the platform's built-in export function, and we flag any screen-scraping fallback scenarios early so the customer understands the timeline and cost implications before we proceed.
Schema scoping and Nutshell field mapping
We map Manta BMS objects to Nutshell's object model (Person, Organization, Lead, Target, Activities, User). Standard fields transfer directly; we document any Manta fields that have no Nutshell equivalent and recommend a custom field strategy for each. Nutshell's settings panel supports custom field creation on all core objects, and we provide a list of required custom fields for the customer's admin to set up before the import phase begins.
Data extraction and cleanup
We extract data from Manta BMS using whatever export format the platform makes available. The extracted data is validated for completeness (record counts, required fields, email format) and cleaned for import readiness (standardized phone formats, deduped email entries, resolved null values). If the export does not include contact-company linkage, we reconstruct it by matching company name across the exported datasets. This phase produces a clean, import-ready dataset and a data quality report for the customer to review.
Owner and user reconciliation
We extract every distinct Manta BMS owner referenced on records and match by email against the Nutshell destination's User table. Any owner without a matching Nutshell User is held in a reconciliation queue. The customer's admin provisions missing users in Nutshell before the import phase begins, with the list of required roles and email addresses provided in the reconciliation report. Inactive Manta BMS users are migrated as inactive Nutshell users to preserve historical assignment data.
Sandbox import and reconciliation
We run a full import into a Nutshell sandbox or parallel environment using production-like data volume. The customer's lead reviews record counts, spot-checks 20-30 records against the Manta source export, and signs off the mapping before production migration begins. Any field mapping corrections, missing fields, or data quality issues surface here rather than in production. This step also validates that Nutshell's field type constraints (picklist whitelists, required fields, email validation) do not reject records during the production load.
Production migration and cutover
We run production migration in dependency order: Users (manually provisioned by admin, validated), Organizations (from Manta Companies), Persons (with Organization link resolved), Leads, Targets (from Manta Deals), and Activities. Each phase emits a row-count reconciliation report before the next phase begins. We freeze writes in Manta BMS during cutover, run a final delta pass for any records modified during the migration window, then hand off to the customer. We deliver a written inventory of any Manta BMS workflows or configurations that do not migrate, with guidance on where to recreate them in Nutshell.
Platform deep dives
Manta Business Management Software
Source
Strengths
Weaknesses
Nutshell
Destination
Strengths
Weaknesses
Complexity grading
Moderate CRM migration. 1 of 8 objects need a manual workaround.
Overall complexity
Moderate migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Manta Business Management Software and Nutshell.
Object compatibility
1 of 8 objects need a manual workaround.
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
Manta Business Management Software: Not publicly documented — confirmed during scoping..
Data volume sensitivity
Manta Business Management Software 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
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