CRM migration
Field-level mapping, validation, and rollback between Fortifi and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Fortifi
Source
Mailchimp
Destination
Compatibility
7 of 9
objects map 1:1 between Fortifi and Mailchimp.
Complexity
BStandard
Timeline
2-3 weeks
Overview
Moving from Fortifi to Mailchimp is a migration from an all-in-one CRM, billing, and marketing platform to a purpose-built email marketing system. The primary data to migrate is Fortifi's Customer records, mapped as Mailchimp Audience members with merge tags carrying the relevant Fortifi properties. Subscription definitions from Fortifi map to Mailchimp Groups and Tags so that list segmentation survives the move. Email engagement history from Fortifi (sent, delivered, opened, bounced states) migrates to Mailchimp activity records where the API supports it. Fortifi Invoices, Actions, Conversions, and Interactions do not have direct Mailchimp equivalents and are flagged for manual disposition. We do not migrate Fortifi Automation Workflows or dunning sequences because these are configuration-level settings that require manual rebuild in Mailchimp's automation builder. The migration approach starts with audience structure design, then contact extraction and deduplication, suppression list handling, and a final delta sync before cutover.
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 Fortifi 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.
Fortifi
Customer
Mailchimp
Audience Member
1:1Fortifi Customer records map to Mailchimp Audience members. The primary key mapping uses email address as the dedupe identifier. Standard fields (first name, last name, email, phone, company) map directly to Mailchimp merge fields (FNAME, LNAME, EMAIL, PHONE, COMPANY). Any Fortifi custom properties on Customers migrate as Mailchimp merge tags or custom fields. We resolve the audience ID in Mailchimp before import and use the Members API with status (subscribed, unsubscribed, cleaned) set from the source opt-in state.
Fortifi
Subscription
Mailchimp
Group or Tag
lossyFortifi Subscription records define recurring billing models and plan assignments. These do not map to a standard Mailchimp object but map to a segmentation strategy. We map each Fortifi subscription plan to a Mailchimp Group or Tag so that customers in plan A land in group/tag PlanA, customers in plan B in group/tag PlanB. The customer selects the grouping strategy (Groups for mutually exclusive plans, Tags for additive classifications) during scoping. Subscription status (active, canceled, past_due) migrates as a separate Tag value.
Fortifi
Email (engagement history)
Mailchimp
Member Activity
1:1Fortifi Email records (sent, delivered, opened, bounced states) migrate to Mailchimp member activity history where the Mailchimp API supports activity retrieval. Open and click data migrates as engagement flags on the Member record. Bounced email addresses are extracted and imported as a Mailchimp suppression list so that no campaigns attempt to resend to invalid addresses. Historical campaign attribution (which campaign sent to which contact) maps to Mailchimp tags with campaign naming conventions.
Fortifi
Custom Properties
Mailchimp
Merge Tags or Custom Fields
lossyFortifi custom field schemas discovered during scoping map to Mailchimp merge tags. We use the Mailchimp Marketing API to pre-create merge tags matching the Fortifi field names and data types (text, number, date, dropdown). Boolean fields become yes/no text or checkbox merge tags. Date fields preserve ISO format. Multi-select or tag-based Fortifi fields may map to Mailchimp tags if the values exceed what a single merge tag can store.
Fortifi
Action
Mailchimp
Tag (behavioral)
1:1Fortifi Actions track behavioral events against customers (purchases, logins, feature usage). Mailchimp does not have a native behavioral event object outside of automation triggers, but we map significant Fortifi Action types to Mailchimp Tags so that marketing automation triggers can reference them. High-frequency action types (page views, daily logins) are excluded as noise; threshold-based actions (first purchase, plan upgrade) are prioritized for tag migration.
Fortifi
Interaction
Mailchimp
Tag (support history)
1:1Fortifi Interactions track customer touchpoints across support and engagement channels. We map interaction channel types (support ticket, live chat, phone) to Mailchimp Tags with a prefix (support_, chat_, phone_) so that support history is visible in Mailchimp for segmentation purposes. Interaction timestamps and summaries are not stored as individual Mailchimp records but referenced in tag metadata.
Fortifi
User
Mailchimp
Admin or API User
1:1Fortifi User records (name, email, role) map to Mailchimp Account users. We extract user email addresses and role assignments from Fortifi and provide a mapping table to Mailchimp admin account invitations. Actual Mailchimp account provisioning requires the customer to send invitations from the Mailchimp account settings. We do not create Mailchimp accounts programmatically.
Fortifi
Invoice
Mailchimp
Not migratable
1:1Fortifi Invoices carry full financial data including line items, payment status, due dates, and tax codes. Mailchimp does not store invoice or financial records. Invoice data is outside Mailchimp's scope as an email marketing platform. We export Fortifi invoice data as a structured CSV file for the customer's accounting or ERP system to ingest separately.
Fortifi
Automation Workflows
Mailchimp
Customer Journeys (manual rebuild)
1:1Fortifi automation rules, dunning sequences, and renewal triggers are configuration-level settings that are not exportable as data records. We document the automation configuration discovered during scoping (trigger conditions, delay rules, action sequences) in a written inventory for the customer's admin to rebuild in Mailchimp's Customer Journeys automation builder. The rebuild is outside standard migration scope.
| Fortifi | Mailchimp | Compatibility | |
|---|---|---|---|
| Customer | Audience Member1:1 | Fully supported | |
| Subscription | Group or Taglossy | Fully supported | |
| Email (engagement history) | Member Activity1:1 | Fully supported | |
| Custom Properties | Merge Tags or Custom Fieldslossy | Mapping required | |
| Action | Tag (behavioral)1:1 | Fully supported | |
| Interaction | Tag (support history)1:1 | Fully supported | |
| User | Admin or API User1:1 | Fully supported | |
| Invoice | Not migratable1:1 | Fully supported | |
| Automation Workflows | Customer Journeys (manual rebuild)1:1 | 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.
Fortifi gotchas
Usage-based pricing tiers impose hard migration boundaries
No publicly documented API endpoint reference
Initial setup complexity for B2B operations
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 capability assessment
We audit the Fortifi account to document customer record counts, custom property schemas, subscription plan definitions, action type classifications, and interaction channel types. We specifically assess available export mechanisms: UI-based CSV exports, direct database access if available, or any undocumented API endpoints. If programmatic export is not available, we design a staged manual export process with data validation checkpoints. We also pull suppression lists (unsubscribes, bounces, complaints) as a separate extraction to be loaded before contact migration.
Mailchimp audience structure design
We design the Mailchimp audience structure before any data moves. This includes creating the primary Audience, defining merge tag schemas matching Fortifi custom properties, establishing Group or Tag taxonomy for subscription plans and interaction types, and configuring field types (text, number, date, dropdown). If the customer has multiple Fortifi customer segments that warrant separate Mailchimp audiences, we design multi-audience architecture and document the segmentation logic.
Suppression list and contact preparation
We load all Fortifi suppression records (unsubscribes, bounces, complaints) into Mailchimp as a pre-import step so that these addresses are blocked before any active contact import. We deduplicate the Fortifi contact list by email address, flagging duplicates for customer resolution. We transform contact data to match Mailchimp field types, normalize phone numbers to E.164 format where applicable, and apply any data quality rules (valid email format, non-empty required fields).
Contact migration with merge tag mapping
We migrate Fortifi Customer records to Mailchimp Audience members in batches using the Mailchimp Members API. Each record receives the appropriate Mailchimp member status (subscribed, unsubscribed, cleaned) based on the source opt-in state. Merge tags are populated from Fortifi standard fields and custom properties. Subscription plan assignments, action-based tags, and interaction history tags are applied as a post-import batch operation. We run row-count reconciliation after each batch and flag any records that failed import for manual review.
Subscription and behavioral tag application
We apply subscription group and tag assignments to the migrated audience. Each Fortifi Subscription record generates a corresponding Group or Tag entry on the matching Mailchimp member. Action-based behavioral tags (plan upgrades, first purchases, support interactions) are applied as a separate tag batch with metadata including the action date. This creates the segmentation foundation for Mailchimp Customer Journey automations post-migration.
Delta sync and cutover
We run a final delta extraction from Fortifi for any contacts modified or added during the migration window. The delta is applied to Mailchimp following the same mapping and suppression rules. We then coordinate the cutover with the customer's marketing team: DNS authentication (SPF, DKIM) is verified in Mailchimp, the sending domain is confirmed, and a test campaign is sent to a small internal list to validate deliverability before full campaign volume begins.
Automation inventory handoff
We deliver a written inventory of every active Fortifi automation (dunning sequences, renewal triggers, behavioral workflows) with the trigger, conditions, actions, and recommended Mailchimp Customer Journey equivalent. We do not rebuild automations in Mailchimp as part of standard migration scope; the inventory document enables the customer's admin to recreate the logic in Mailchimp's automation builder. We do not migrate Fortifi reports or dashboards; underlying data is available in Mailchimp for rebuilding reports from scratch.
Platform deep dives
Fortifi
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. All 8 core objects map 1:1 between Fortifi and Mailchimp.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Fortifi and Mailchimp.
Object compatibility
All 8 core objects map 1:1 between Fortifi and Mailchimp.
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
Fortifi: Not publicly published on docs.fortifi.io as a single numeric ceiling..
Data volume sensitivity
Fortifi 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
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