CRM migration
Field-level mapping, validation, and rollback between Force24 and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Force24
Source
Mailchimp
Destination
Compatibility
3 of 12
objects map 1:1 between Force24 and Mailchimp.
Complexity
BStandard
Timeline
2-4 weeks
Overview
Moving from Force24 to Mailchimp is a consolidation from a multi-channel marketing automation suite onto a contact-centric email and SMS platform. Force24 holds contacts with rich behavioural data — lifecycle stage, lead score, Custom Objects, and multi-channel engagement history — while Mailchimp organises around Audiences with Tags, Merge Fields, and Segments. We export the full contact record set including system properties and custom fields, map Force24's lifecycle stage and lead scores to Mailchimp Merge Fields, and preserve the engagement timeline as activity notes attached to each contact. Automated Journeys and Smart Lists are documented in full and handed off as written specifications; Mailchimp's automation builder recreates them. Force24's Custom Objects (such as Bookings) require account-manager activation on the source side and non-standard API coordination, which we arrange during discovery. The result is a clean Mailchimp Audience ready for segmentation and campaign launch on day one.
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 Force24 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.
Force24
Contact
Mailchimp
Audience Contact
1:1Force24 Contacts map directly to Mailchimp Audience contacts. All standard fields (email, first name, last name, phone) migrate as Merge Fields using Mailchimp's standard naming (FNAME, LNAME, EMAIL, PHONE). Lifecycle Stage from Force24 maps to a custom Merge Field (LIFECYCLESTAGE) as plain text. We use the Mailchimp Bulk Import API with email as the unique identifier for deduplication. Any Force24 contacts with status of Unsubscribed or Bounced are exported separately as a suppression list and imported before the main audience to preserve deliverability.
Force24
Company / Account
Mailchimp
Merge Field or Note
lossyForce24 Company records are lightweight — typically a name and URL — and Mailchimp does not have a native Company or Account object. We map the Company name to a Merge Field (COMPANY) and the website to a Merge Field (WEBSITE) on each contact. If the customer requires a CRM-style account model, we document the company-contact relationship and recommend a Mailchimp integration with Salesforce or HubSpot post-migration to maintain that layer.
Force24
Lead
Mailchimp
Audience Contact
1:1Force24 Lead records are stored as Contacts with a lifecycle stage property. They migrate as Mailchimp contacts with the same Merge Fields as standard contacts, carrying the original lifecycle stage value in the LIFECYCLESTAGE Merge Field. There is no separate Lead object in Mailchimp; all prospects live in the same Audience.
Force24
Tag
Mailchimp
Tag
1:1Force24 contact tags migrate directly to Mailchimp Tags. Tags are preserved in full — all existing tag names and their association with individual contacts carry across via the Mailchimp Tags API. Mailchimp's tag model supports multiple tags per contact, matching Force24's behaviour.
Force24
Smart List / Segment
Mailchimp
Segment (static membership export)
lossyForce24 Smart Lists define filter conditions against contact properties and behaviours. We export the contact IDs included in each Smart List at migration time and create static Mailchimp Segments with those same contacts pre-selected. The dynamic filter logic (property conditions, behavioural triggers, AND/OR combinations) cannot be transferred and is documented as a written specification for the customer to rebuild using Mailchimp's Segment builder. Active real-time segments will become static lists and require manual refresh in Mailchimp.
Force24
Lead Score
Mailchimp
Merge Field
lossyForce24's lead scoring engine assigns numeric scores to contacts based on engagement and property rules. We export the current score value stored on each contact as a Merge Field (LEADSCORE) of type number. The scoring rules themselves are Force24 configuration and do not migrate; we document the rule logic so the customer can replicate it using Mailchimp's automation triggers or an external scoring tool post-migration.
Force24
Custom Object (e.g. Bookings)
Mailchimp
Merge Fields or Note
lossyForce24 Custom Objects are linked-data tables (such as Bookings or Event Registrations) associated with contacts. This feature requires account manager activation on the source account. If enabled, we export each Custom Object definition and its records, then map the fields to Mailchimp Merge Fields on the associated contact. Highly structured Custom Object data with multiple fields per record is flattened into individual Merge Fields (BOOKING_DATE, BOOKING_STATUS, BOOKING_AMOUNT) or written as a plain-text Note on the contact record if Merge Field count becomes a constraint. This requires confirmation of Custom Object activation during discovery.
Force24
Automated Journey
Mailchimp
Customer Journey Builder (documentation only)
lossyForce24 Automated Journeys define multi-step, multi-channel workflows with conditional branching, wait steps, and behavioural triggers. Journey logic is not stored in a portable format and cannot be transferred programmatically. We audit every active journey, document the trigger (entry condition), all steps and branches, timing logic, and exit conditions, and deliver a written journey specification so the customer's team can rebuild each flow in Mailchimp Customer Journey Builder. This is a rebuild task, not a data migration.
Force24
Engagement: Email Open/Click
Mailchimp
Contact Activity Note
lossyForce24 tracks email opens, clicks, and engagement events against contacts. Mailchimp does not have a native engagement history log per contact beyond campaign-level reporting. We export the engagement event count and most recent engagement date as Merge Fields (LAST_EMAIL_OPEN, LAST_EMAIL_CLICK, TOTAL_OPENS, TOTAL_CLICKS) on each contact record. The granular per-campaign engagement timeline is documented as a report export from Force24 for the customer's records.
Force24
SMS and WhatsApp Records
Mailchimp
Contact Note
lossyForce24 stores SMS and WhatsApp message history against contacts. Mailchimp supports SMS on Standard and Premium plans but does not have a native WhatsApp channel (Mailchimp offers SMS through Twilio on paid plans). We export SMS message records as plain-text Notes on the contact with timestamps. WhatsApp records migrate as Notes only; the customer sets up a WhatsApp Business integration separately if WhatsApp messaging continues to be required.
Force24
Email Template
Mailchimp
HTML Asset (documentation)
lossyForce24 email templates and dynamic content blocks export as HTML. Since they reference Force24-specific merge fields, we recommend reviewing and adapting template HTML before importing into Mailchimp's template builder. We export the HTML asset alongside the contact data and flag any Force24-specific variable syntax that requires replacement with Mailchimp merge tag equivalents (such as *|FNAME|* replacing Force24 merge field formats).
Force24
Form
Mailchimp
Signup Form (documentation)
lossyForce24 forms capture lead data and feed it into contacts and journeys. We export form field configurations and submission counts. Mailchimp's form builder replaces Force24 forms. We document the form field mapping (which Force24 fields map to which Mailchimp Merge Fields) as part of the migration specification so the customer's team can configure equivalent Mailchimp signup forms post-migration.
| Force24 | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact | Audience Contact1:1 | Fully supported | |
| Company / Account | Merge Field or Notelossy | Fully supported | |
| Lead | Audience Contact1:1 | Fully supported | |
| Tag | Tag1:1 | Fully supported | |
| Smart List / Segment | Segment (static membership export)lossy | Fully supported | |
| Lead Score | Merge Fieldlossy | Fully supported | |
| Custom Object (e.g. Bookings) | Merge Fields or Notelossy | Fully supported | |
| Automated Journey | Customer Journey Builder (documentation only)lossy | Fully supported | |
| Engagement: Email Open/Click | Contact Activity Notelossy | Fully supported | |
| SMS and WhatsApp Records | Contact Notelossy | Fully supported | |
| Email Template | HTML Asset (documentation)lossy | Fully supported | |
| Form | Signup Form (documentation)lossy | 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.
Force24 gotchas
Custom Objects require account manager activation
Journey automation logic is not portable
Contact and email allowances are tier-gated
Smart List filter logic requires re-implementation
API endpoints for Custom Objects are non-standard
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 scope confirmation
We audit the Force24 portal across tier, contact volume, active vs unsubscribed vs bounced counts, Custom Object definitions and record counts, Smart List names and membership sizes, active Automated Journeys, and engagement event volume. We confirm whether Custom Objects are activated and whether API access for Custom Objects requires coordination with Force24 support. The discovery output is a written migration scope document with object-by-object record counts, a Mailchimp plan recommendation based on total audience size, and a preliminary pricing estimate.
Suppression list and unsubscribe handling
Before importing any contacts into Mailchimp, we export the full Force24 suppression list — unsubscribed, bounced, and complained contacts — and import it into Mailchimp as a suppression list. This prevents accidentally emailing contacts who previously unsubscribed and protects the customer's deliverability reputation on day one. Mailchimp charges for all contacts in the audience regardless of status, but suppression list entries do not receive emails.
Audience creation and Merge Field mapping
We create the Mailchimp Audience and define all Merge Fields before importing any contacts. This includes standard fields (FNAME, LNAME, EMAIL, PHONE), custom fields for Force24 properties (LIFECYCLESTAGE, LEADSCORE, COMPANY, WEBSITE), and any Merge Fields required for Custom Object data. Merge Field types (text, number, date, dropdown) are matched to Force24 field data types to avoid import type errors. The Audience is configured with the correct country and timezone settings for GDPR compliance if the customer operates in the UK or EU.
Contact migration with deduplication
We run the contact import using Mailchimp's Bulk Import API with email as the unique identifier. Any contacts already present in Mailchimp from a previous integration are updated rather than duplicated. We apply the Smart List static membership export — contacts from each Force24 Smart List are added to the corresponding static Mailchimp Segment. Tags are applied via the Tags API in the same pass. Duplicate email addresses (multiple Force24 contacts sharing one email) are flagged for the customer's admin to resolve before final import.
Engagement history and activity note export
We export engagement event counts (total opens, total clicks, last open date, last click date) and SMS history from Force24 and write them as Merge Fields or Notes on each Mailchimp contact record. Highly granular per-campaign engagement timelines are exported as a CSV report for the customer's records. Mailchimp does not display this historical data in the native contact timeline, so the CSV serves as the audit trail for engagement history post-migration.
Template and form documentation delivery
We export Force24 email templates as HTML files and deliver them alongside a mapping document showing which merge fields each template references. We flag Force24-specific variable syntax that requires replacement with Mailchimp merge tag equivalents before upload to Mailchimp's template builder. We deliver form field configurations as a written mapping document. The customer's team uploads templates to Mailchimp and configures forms using Mailchimp's builder; this is a manual step requiring the customer's design review.
Cutover, validation, and journey rebuild handoff
We freeze Force24 writes during cutover, run a final delta migration of any contacts modified during the migration window, and validate the Mailchimp audience record count against the Force24 export total. We deliver the Automated Journey specification document, the Smart List filter logic document, and the lead scoring rule documentation to the customer's team. We support a 72-hour post-cutover window to resolve import errors or contact reconciliation issues. Journey rebuild in Mailchimp Customer Journey Builder is a separate task handled by the customer's team or a Mailchimp implementation partner.
Platform deep dives
Force24
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 1 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 Force24 and Mailchimp.
Object compatibility
1 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
Force24: Not publicly documented.
Data volume sensitivity
Force24 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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Category
FAQ
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