CRM migration

Migrate from SalesSeek to Twenty CRM

Field-level mapping, validation, and rollback between SalesSeek and Twenty CRM. We move data and schema; workflows are rebuilt natively in Twenty CRM.

SalesSeek logo

SalesSeek

Source

Twenty CRM

Destination

Twenty CRM logo

Compatibility

83%

10 of 12

objects map 1:1 between SalesSeek and Twenty CRM.

Complexity

BStandard

Timeline

3-5 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

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.

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

SalesSeek logo

SalesSeek

What's pushing teams away

  • Only 2 verified G2 reviews with a low 2.3 rating suggests limited market traction and support resources for troubleshooting
  • Per-user pricing becomes expensive as teams scale, pushing cost-conscious businesses toward per-contact or tiered alternatives
  • Small company footprint (15 employees) raises concerns about long-term viability and product roadmap investment
  • Reported usability issues and learning curve frustrations appear across review summaries compared to more intuitive competitors
  • Limited third-party integrations compared to established CRMs with extensive marketplace ecosystems

Choosing

Twenty CRM logo

Twenty CRM

What's pulling them in

  • Top open-source CRM on GitHub with 40.6K stars, giving teams full source code access and infrastructure ownership without per-feature licensing surprises.
  • Free self-hosting under AGPL-3.0 means unlimited users and custom objects for the cost of cloud infrastructure alone, typically $20–100/month.
  • Pricing page explicitly mocks competitors for charging add-on fees for API access, webhooks, and workflows — transparency that resonates with RevOps teams burned by Salesforce.
  • Unlimited custom objects and fields with no price impact, letting teams shape the data model to their business rather than forcing business into rigid schemas.
  • Modern TypeScript/React/PostgreSQL stack means developer-led teams can extend, self-host, or integrate without fighting legacy architecture.

Object mapping

How SalesSeek objects map to Twenty CRM

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

maps to

Twenty CRM

Company

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

Contact

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

Opportunity

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

Opportunity Stage

lossy
Fully supported

Each 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

maps to

Twenty CRM

Pipeline

1:1
Fully supported

SalesSeek'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

maps to

Twenty CRM

Task

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

TimelineTarget

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

Custom Field

lossy
Fully supported

SalesSeek 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

maps to

Twenty CRM

Team

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

Tag

1:1
Fully supported

SalesSeek 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

maps to

Twenty CRM

Attachment

1:1
Fully supported

File 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

maps to

Twenty CRM

Saved View

1:1
Fully supported

SalesSeek 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.

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.

SalesSeek logo

SalesSeek gotchas

Medium

Filter API is read-only and filters decay without Groups

High

Automation rules not accessible via API

Low

Custom field types require explicit value mapping

Twenty CRM logo

Twenty CRM gotchas

High

Import order is enforced and critical

High

Export limited to 20,000 records and visible columns only

Medium

Soft-deleted records count toward uniqueness and trigger restores

Medium

API rate limits cap at 200 req/min on Organization tier

Low

No native email sequences — follow-up cadences require external tools

Pair-specific challenges

  • Automation rules cannot be migrated via API

    SalesSeek's automation rules including drip email sequences, lead scoring logic, and task triggers are not exposed through its REST API. We document the automation structure during scoping and deliver a written reconstruction guide with the trigger, conditions, and actions of each rule. In Twenty CRM, sequences are implemented through stage chaining — 'Call done' triggers a task creation in two days which triggers the next email step. This is a manual rebuild effort that should be planned separately from the data migration timeline.

  • Orphaned SalesSeek filters may be deleted before migration

    SalesSeek's API does not support updating or deleting filters — only creating new ones. Filters not associated with a Group are periodically cleaned up by the platform. During scoping, we identify all active filters and their Group associations. Any orphaned filters in SalesSeek may have already been deleted before migration begins. We export filter definitions and provide a filter inventory so the customer's admin can manually recreate them as saved views in Twenty CRM.

  • Self-hosted Twenty CRM requires infrastructure management

    If the customer chooses Twenty's self-hosted option, they assume responsibility for the update process. GitHub issue #14705 documents cases where self-hosted instances show a blank CRM after certain version upgrades (e.g., 1.3.0 to 1.6.7). Database migrations complete but the workspace appears broken. Teams choosing self-hosting should plan for regular maintenance windows and test updates in a staging environment before applying them to production.

  • Twenty CRM has no native sequence engine

    Twenty CRM does not include a native sales engagement sequence feature (cadence emails with built-in delays). Sequences must be implemented through task chaining — stage progression triggers task creation which triggers the next action. Teams migrating from SalesSeek's drip campaigns will need to redesign their outreach process around this model or pair Twenty with a dedicated sales engagement tool. We document the gap in the automation inventory deliverable.

  • Custom field dropdowns require explicit option mapping

    SalesSeek dropdown fields have enumerated options that must be explicitly mapped to equivalent picklist values in Twenty CRM. Options that don't have a direct Twenty equivalent require a decision (map to closest value, create new option, or drop). We generate a custom field mapping spreadsheet during scoping that lists each field name, type, and options for customer review before migration begins.

Migration approach

Six steps for a successful SalesSeek to Twenty CRM data migration

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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

Context on both ends of the pair

SalesSeek logo

SalesSeek

Source

Strengths

  • Combines CRM, email marketing, and marketing automation in a single subscription without addon costs
  • Highly customizable pipeline stages and multiple simultaneous pipeline views for different deal types
  • REST API supports filtering on any field including custom fields with pagination controls
  • Built-in relationship mapping helps track connections between contacts and accounts
  • Quota management tools assist team leaders in monitoring rep performance

Weaknesses

  • Very limited public review presence (2 reviews, 2.3 G2 rating) indicating low market adoption
  • Small company size (15 employees) raises questions about long-term product support and development
  • Pricing details not publicly documented making competitive evaluation difficult before sales contact
  • Per-user annual pricing model can become costly for larger sales teams
  • Limited third-party integration marketplace compared to established CRM platforms
Twenty CRM logo

Twenty CRM

Destination

Strengths

  • AGPL-3.0 open-source license with full source code on GitHub — no vendor lock-in, no sunset risk.
  • Unlimited users and unlimited custom objects on self-hosted, with no feature gating based on headcount.
  • REST and GraphQL APIs available on all paid tiers, not locked behind an enterprise add-on fee.
  • MCP server and webhooks shipped as standard features, not premium upgrades.
  • Modern PostgreSQL-backed data model that developer teams can query, extend, and self-host.

Weaknesses

  • Recent v1.0 release means limited production hardening compared to CRMs with multi-year operational track records.
  • No native email sequencing or sales engagement tools — follow-up cadences require a separate platform.
  • No native two-way email sync or inbox integration, requiring third-party connectors for full activity logging.
  • Self-hosting 'free' pricing hides real infrastructure and DevOps costs that stack up over time.
  • Workflow automation is functional but lacks the complexity needed for sophisticated multi-step sales motions.

Complexity grading

How hard is this migration?

Standard CRM migration. 2 of 8 objects need a mapping; the rest are 1:1.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across SalesSeek and Twenty CRM.

  • Object compatibility

    B

    2 of 8 objects need a mapping; the rest are 1:1.

  • Field mapping clarity

    C

    Field mapping is derived from defaults — final spec confirmed during the sample migration.

  • Timeline complexity

    B

    8-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    SalesSeek: Not publicly documented.

  • Data volume sensitivity

    B

    SalesSeek doesn't expose a bulk API — REST + parallelization used for high-volume runs.

Estimator

Estimate your SalesSeek to Twenty CRM migration cost

Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.

Step 1

What are you migrating?

Pick a category, then your source and destination platforms.

Category

FAQ

Frequently asked questions about SalesSeek to Twenty CRM data migrations

Answers to the questions buyers ask most during SalesSeek to Twenty CRM migration scoping. Not seeing yours? Book a call.

Can't find your answer?

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Most migrations land between three and five weeks for accounts under 10,000 People and 2,000 Deals with standard fields and no custom objects. Migrations with multiple pipelines, dropdown custom fields requiring explicit option mapping, large activity histories (over 200,000 engagement records), or custom objects move to seven to ten weeks because of custom field mapping coordination and dependency resolution time.

Adjacent paths

Related migrations to explore

Ready when you are

Move from SalesSeek.
Land in Twenty CRM, intact.

Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.

Accuracy guarantee Rollback included Quote in 1 business day