CRM migration
Field-level mapping, validation, and rollback between SalesSeek and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.
SalesSeek
Source
Twenty CRM
Destination
Compatibility
10 of 12
objects map 1:1 between SalesSeek and Twenty CRM.
Complexity
BStandard
Timeline
3-5 weeks
Overview
Moving from SalesSeek to Twenty CRM is a transition from a UK-built midmarket all-in-one to an open-source CRM that runs self-hosted or on managed cloud. The object models align closely — SalesSeek Organizations map to Twenty Companies, People map to Contacts, Deals map to Opportunities — but the automation model differs materially. SalesSeek's drip campaigns, lead scoring, and task triggers are not exposed through its API, so we document them as a written reconstruction guide rather than migrating them as code. We preserve pipeline stage labels and probability percentages, resolve owner mapping by email against Twenty's user table, and transfer activity history with timestamps intact. Custom field types including dropdown enumerations are explicitly mapped to their Twenty equivalents. Attachments, tags, and Groups transfer where the APIs allow. Filter definitions are exported for manual re-creation as saved views in Twenty.
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 SalesSeek object lands in Twenty CRM, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
SalesSeek
Organization
Twenty CRM
Company
1:1SalesSeek Organizations map directly to Twenty CRM Companies. The organization name, address, industry, and any custom fields transfer as Company fields. The SalesSeek organization ID is preserved as a custom external ID field (ss_external_id__c) for re-linking to People records. Industry classification maps from SalesSeek's enumerated industry list to Twenty's industry field where values align.
SalesSeek
People
Twenty CRM
Contact
1:1SalesSeek People map to Twenty CRM Contacts with the email address as the primary lookup key. First name, last name, phone, title, and lifecycle stage transfer directly. Each Contact is linked to its parent Company via the Twenty relational model (company_id foreign key). The SalesSeek person ID is preserved as ss_external_id__c for re-linking to Deals and Activities.
SalesSeek
Deal
Twenty CRM
Opportunity
1:1SalesSeek Deals map to Twenty CRM Opportunities. The deal name, monetary value, expected close date, and stage transfer directly. Stage probability percentages migrate from SalesSeek's stage configuration to Twenty's stage probabilities. The Opportunity is linked to its primary Contact (WhoId equivalent) and Company (WhatId equivalent) via Twenty's relational fields.
SalesSeek
Pipeline Stage
Twenty CRM
Opportunity Stage
lossyEach SalesSeek pipeline's stage labels, sequence order, and probability percentages are exported and re-created as Opportunity stages in Twenty CRM. Stage probability rounding is applied to align with Twenty's expected format. Post-migration, the customer's admin reviews stage labels in Twenty's pipeline settings to confirm they match the original SalesSeek labels.
SalesSeek
Pipeline
Twenty CRM
Pipeline
1:1SalesSeek's multiple pipeline visualizations map to Twenty CRM pipelines. Each pipeline's name and associated stage set are transferred. If the customer has distinct pipelines for different deal types (e.g., new business vs. renewals), these become separate Twenty pipelines with their own stage configurations.
SalesSeek
Task
Twenty CRM
Task
1:1SalesSeek Tasks map to Twenty CRM Tasks. Due date, status (open/completed), priority, and task title transfer directly. Task assignment resolves the SalesSeek owner ID to a Twenty User by email match. Completed tasks preserve their completion date; open tasks preserve their due date and status for rep follow-up.
SalesSeek
Activity/Event
Twenty CRM
TimelineTarget
1:1SalesSeek engagement activities (calls, emails, meetings) map to Twenty's Activity objects with type preserved as an activity type field. Each activity links to its associated Contact (and through that Contact to the Company) and to any related Opportunity. Activity timestamps are preserved for timeline ordering. Call disposition and duration migrate to custom fields on the activity record.
SalesSeek
Custom Field
Twenty CRM
Custom Field
lossySalesSeek custom fields on Organizations, People, and Deals (text, number, date, dropdown types) require explicit type mapping to Twenty CRM custom fields. Dropdown fields with enumerated options are the most complex — we generate a mapping spreadsheet listing each dropdown field name, source options, and the equivalent Twenty picklist values for customer review. Text, number, and date fields map by type with field names preserved where possible.
SalesSeek
Group
Twenty CRM
Team
1:1SalesSeek Groups (collections of records used for filtering and sharing) map to Twenty CRM Teams. Group membership is exported as Team membership records. If Twenty Teams don't fully replicate the original Group behavior, we document the gap and recommend a saved view or list approach as a supplement.
SalesSeek
Tag
Twenty CRM
Tag
1:1SalesSeek tags on Organizations, People, and Deals transfer as Tags in Twenty CRM. Tag names are preserved exactly; duplicate tags are deduplicated during export. Tags serve as cross-object labels in Twenty and appear in the record detail view.
SalesSeek
Attachment
Twenty CRM
Attachment
1:1File attachments associated with Organizations, People, or Deals are downloaded from SalesSeek and re-uploaded to Twenty CRM as attachments linked to the corresponding record. If the attachment contains a URL reference rather than a binary file, we preserve the URL and note the dependency on external access.
SalesSeek
Filter
Twenty CRM
Saved View
1:1SalesSeek filter definitions are exported with their filter criteria (field, operator, value) and associated Group. Filters are not transferable as code because SalesSeek's API does not support creating or updating filters. We provide a filter inventory spreadsheet with criteria details so the customer's admin can manually re-create each filter as a saved view in Twenty CRM.
| SalesSeek | Twenty CRM | Compatibility | |
|---|---|---|---|
| Organization | Company1:1 | Fully supported | |
| People | Contact1:1 | Fully supported | |
| Deal | Opportunity1:1 | Fully supported | |
| Pipeline Stage | Opportunity Stagelossy | Fully supported | |
| Pipeline | Pipeline1:1 | Fully supported | |
| Task | Task1:1 | Fully supported | |
| Activity/Event | TimelineTarget1:1 | Fully supported | |
| Custom Field | Custom Fieldlossy | Fully supported | |
| Group | Team1:1 | Fully supported | |
| Tag | Tag1:1 | Fully supported | |
| Attachment | Attachment1:1 | Fully supported | |
| Filter | Saved View1:1 | 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.
SalesSeek gotchas
Filter API is read-only and filters decay without Groups
Automation rules not accessible via API
Custom field types require explicit value mapping
Twenty CRM gotchas
Import order is enforced and critical
Export limited to 20,000 records and visible columns only
Soft-deleted records count toward uniqueness and trigger restores
API rate limits cap at 200 req/min on Organization tier
No native email sequences — follow-up cadences require external tools
Pair-specific challenges
Migration approach
Discovery and scoping audit
We audit the source SalesSeek account across Organizations, People, Deals, Tasks, Activities, Pipelines, Custom Fields, Groups, Tags, and Attachments. We assess record volumes per object, identify active automation rules and filters requiring documentation, and inventory custom field types especially dropdown enumerations. We review the SalesSeek pipeline structure including stage names, order, and probabilities. The output is a written migration scope with object-level record counts, a preliminary mapping table, and the automation inventory checklist.
Schema design and pipeline configuration
We design the destination schema in Twenty CRM. This includes creating custom fields on Company, Contact, and Opportunity to match SalesSeek custom field definitions. Dropdown fields get their picklist options populated from the mapping spreadsheet. Pipeline stages are configured with names and probabilities matched to the original SalesSeek pipeline. We create any Teams needed to replicate SalesSeek Group sharing behavior. Schema is built in a Twenty staging or development instance first for validation.
Sandbox migration and reconciliation
We run a full migration into Twenty using production-like data volume from a data export. The customer's team reconciles record counts (Companies in, Contacts in, Opportunities in, Activities in), spot-checks 25-50 random records against the SalesSeek source, and validates pipeline stage labels. Any mapping corrections — particularly around dropdown option alignment — happen here. The customer signs off the schema and mapping before production migration begins.
Owner reconciliation and user provisioning
We extract every distinct SalesSeek owner referenced on Organization, People, Deal, and Activity records and match by email against the Twenty destination's user table. Owners without a matching Twenty User go to a reconciliation queue. The customer's admin provisions any missing users in Twenty. Migration cannot proceed past this step because owner assignment is a required field on most standard records in Twenty's relational model.
Production migration in dependency order
We run production migration in record-dependency order: Companies first (Organizations without dependencies), then Contacts linked to their parent Company via the external ID resolution, then Opportunities linked to their primary Contact and Company, then Activity history with parent-record resolution to Contact and Opportunity, then Tags and Attachments. Each phase emits a row-count reconciliation report before the next phase begins. Attachments are downloaded from SalesSeek and re-uploaded to Twenty in a separate phase after record migration completes.
Cutover, validation, and automation handoff
We freeze SalesSeek writes during cutover, run a final delta migration of any records modified during the migration window, then enable Twenty CRM as the system of record. We deliver the automation inventory and reconstruction guide to the customer's admin team with recommended Twenty stage-chaining patterns for each original automation. We support a one-week hypercare window for reconciliation issues. We do not rebuild SalesSeek automations as Twenty sequences inside the migration scope.
Platform deep dives
SalesSeek
Source
Strengths
Weaknesses
Twenty CRM
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 SalesSeek and Twenty CRM.
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
SalesSeek: Not publicly documented.
Data volume sensitivity
SalesSeek 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.
Category
FAQ
Answers to the questions buyers ask most during SalesSeek to Twenty CRM migration scoping. Not seeing yours? Book a call.
Walk through your SalesSeek to Twenty CRM migration with a real engineer — 30 minutes, free, written quote within 24 hours.
Book a free 30 minute consultationAdjacent paths
Other ways to leave SalesSeek
Other ways to arrive at Twenty CRM
Ready when you are
Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.