CRM migration
Field-level mapping, validation, and rollback between Field2Base and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Field2Base
Source
Mailchimp
Destination
Compatibility
11 of 12
objects map 1:1 between Field2Base and Mailchimp.
Complexity
BStandard
Timeline
24–72 hours
Overview
Field2Base is a field service automation platform built around mobile form design, submission capture, and workflow approval. Its data model centers on Form Templates, Form Submissions, and Submitting Users — with custom Regions as configurable form fields. Mailchimp operates as an email marketing platform with Audiences, Contacts, Merge Fields, Tags, and Campaigns. The two platforms serve fundamentally different functions, which means the migration centers on extracting submitter contact data from Field2Base submissions and reconstructing it as Mailchimp contacts with appropriate merge field values. We map Form Submissions to Contact records, Field2Base Users to Mailchimp Contacts, and custom form Regions to Mailchimp Merge Fields. Field2Base workflows (review and approval steps) have no Mailchimp equivalent — those must be rebuilt as manual processes or documented for rebuild in a separate workflow tool. Photo attachments, signatures, and barcode data cannot live in Mailchimp contacts and are exported as files for separate handling. The migration runs via Field2Base API export and Mailchimp bulk import, with a test sample validating field mapping before the full run commits.
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 Field2Base 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.
Field2Base
Form Submission
Mailchimp
Contact
1:1Each Field2Base Form Submission maps to one Mailchimp Contact. The submitter's email address becomes the Contact's email address, which serves as Mailchimp's primary identifier. Multiple submissions from the same email address update the existing Contact rather than creating duplicates. This mapping also supports future updates where new submissions automatically refresh the corresponding contact's data in Mailchimp.
Field2Base
Submitting User
Mailchimp
Contact
1:1Field2Base User accounts with email addresses map directly to Mailchimp Contacts. Users without email addresses cannot become Mailchimp contacts — those are flagged for manual review. User role (Admin, Form Designer, Mobile User) maps to Tags on the Mailchimp Contact.
Field2Base
Form Template
Mailchimp
Audience + Tag Group
many:1If migrating multiple form types, each Form Template maps to a dedicated Tag in Mailchimp applied to all Contacts created from submissions of that template. Alternatively, all submissions consolidate into one Mailchimp Audience with a form-type merge field identifying the source template.
Field2Base
Region (custom form field)
Mailchimp
Merge Field
1:1Each Field2Base Region (text, numeric, date, dropdown, checkbox) on a Form Template maps to a Mailchimp Merge Field. Field2Base field validation rules inform the merge field data type. Dropdown Regions require value-by-value mapping to Mailchimp pick-list options. We also generate a validation report highlighting any values that do not map directly.
Field2Base
Submission Timestamp
Mailchimp
Merge Field (SubmissionDate)
1:1Mailchimp Contacts have no native submission timestamp. We create a F2B_SUBMIT_DATE merge field capturing the original Field2Base submission datetime. This preserves historical submission ordering for marketing segmentation. This timestamp can later be used in Mailchimp date‑based automations to trigger follow‑up emails based on when the original form was filled out.
Field2Base
Approval Status
Mailchimp
Merge Field (ApprovalStatus) + Tag
1:1Field2Base workflow approval status (Pending, Approved, Rejected) migrates as a merge field and applies corresponding Tags in Mailchimp. Approval routing logic cannot transfer — it becomes a documented reference for manual process rebuild. These tags enable segmentation by approval outcome, allowing targeted email campaigns for approved or pending items.
Field2Base
GPS Location
Mailchimp
Merge Field (SubmissionLocation)
1:1Field2Base GPS coordinates captured at submission migrate as latitude/longitude text in a F2B_GPS merge field. Geolocation segmentation in Mailchimp requires additional tools like Mailchimp's built-in location filtering on the city or country level. Mailchimp's location filters can then be applied to these coordinates for basic geographic segmentation across campaigns.
Field2Base
Photo Attachment
Mailchimp
External File Export
1:1Photos captured via Field2Base Camera Region cannot attach to Mailchimp contacts. We export all photos to a cloud storage location and create a F2B_PHOTOS_URL merge field storing the link reference. Photos must be hosted externally. All URLs are validated for accessibility before the final import to prevent broken links.
Field2Base
Signature
Mailchimp
External File Export
1:1Signature images captured on Field2Base forms have no Mailchimp equivalent. Signatures are exported as image files with the corresponding contact email in the filename for manual association. A F2B_SIGNATURE_URL merge field links to the exported file. The filename includes the submission ID for quick lookup when needed.
Field2Base
Form Workflow
Mailchimp
Customer Journey (manual rebuild reference)
1:1Field2Base workflows with multi-step approval chains have no direct Mailchimp equivalent. We document the workflow structure, approval steps, and conditional logic as a reference guide for rebuilding in Mailchimp Customer Journeys or a separate workflow tool. This documentation can be shared with stakeholders to align on process redesign before implementation.
Field2Base
Barcode / QR Data
Mailchimp
Merge Field (BarcodeValue)
1:1Barcodes and QR codes scanned via Field2Base migrate as text in a F2B_BARCODE merge field. The barcode image itself is not preserved — only the decoded data value. Barcode lookup or validation logic is not transferred. If a barcode is invalid, we log the raw value for manual review rather than skipping the contact.
Field2Base
Offline Submission Flag
Mailchimp
Merge Field (OfflineCaptured)
1:1Submissions captured offline before syncing carry a flag in Field2Base. We preserve this as a F2B_OFFLINE merge field with Yes/No values so marketing can filter for contacts captured in offline-first scenarios. This field can be used in Mailchimp segment filters to target users who submitted forms while offline, enabling follow‑up on connectivity issues.
| Field2Base | Mailchimp | Compatibility | |
|---|---|---|---|
| Form Submission | Contact1:1 | Fully supported | |
| Submitting User | Contact1:1 | Fully supported | |
| Form Template | Audience + Tag Groupmany:1 | Fully supported | |
| Region (custom form field) | Merge Field1:1 | Fully supported | |
| Submission Timestamp | Merge Field (SubmissionDate)1:1 | Fully supported | |
| Approval Status | Merge Field (ApprovalStatus) + Tag1:1 | Fully supported | |
| GPS Location | Merge Field (SubmissionLocation)1:1 | Fully supported | |
| Photo Attachment | External File Export1:1 | Fully supported | |
| Signature | External File Export1:1 | Fully supported | |
| Form Workflow | Customer Journey (manual rebuild reference)1:1 | Fully supported | |
| Barcode / QR Data | Merge Field (BarcodeValue)1:1 | Fully supported | |
| Offline Submission Flag | Merge Field (OfflineCaptured)1:1 | 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.
Field2Base gotchas
Offline draft data loss risk at migration cutover
Integration capabilities are tier-gated
API rate limits not publicly documented
Custom Regions require manual field mapping
Submitted form versioning not tracked in exports
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
Audit Form Templates and Region configurations
FlitStack AI connects to the Field2Base API and enumerates all Form Templates, custom Regions, and data types configured in the account. We identify dropdown value lists, required field constraints, and any Regions that may exceed Mailchimp merge field limits. This audit produces a Region-to-MergeField mapping spreadsheet that serves as the migration specification before any data moves. The resulting spreadsheet also flags any Regions that cannot be mapped due to type mismatches, allowing the team to decide whether to adjust the Field2Base template or use a workaround such as storing data in tags.
Configure Mailchimp audience and merge fields
Using the mapping spreadsheet from the audit, FlitStack AI creates the required merge fields in the target Mailchimp audience — including all custom field names, data types, and dropdown options pulled from Field2Base. If merge field limits are reached, we coordinate with the team to either split across multiple audiences or consolidate low-priority Regions into Tags. SPF, DKIM, and domain authentication are verified to protect email deliverability post-migration.
Extract submitter data and form submissions via API
FlitStack AI pulls all Form Submissions and Submitting User records from Field2Base via the REST API. For each submission, we extract the submitter profile, all Region field values, GPS coordinates, approval status, submission timestamp, and device type. Photos and signatures are downloaded to cloud storage separately. The extraction preserves the original Field2Base submission IDs for traceability. The export also records the device model and operating system when available, providing insight into the mobile environment where submissions originated.
Run test migration on sample submission slice
A representative sample — typically 100–500 submissions spanning multiple Form Templates and approval statuses — imports into the Mailchimp audience first. FlitStack AI generates a field-level diff comparing source Field2Base values against the resulting Mailchimp contact merge field values. The team reviews dropdown value mapping accuracy, URL references for photos and signatures, and tag application before the full run commits.
Execute full migration with delta pickup window
The complete dataset imports into Mailchimp. A delta pickup window (typically 24–48 hours) captures any new Field2Base submissions created during the migration window. FlitStack AI applies Tags for Form Template, user role, and approval status. An audit log records every operation, and one-click rollback is available if the team identifies data integrity issues requiring a restart. Should any validation errors arise during import, FlitStack AI logs them with field‑level detail so the team can correct source data and re‑run the affected batch without restarting the entire migration.
Deliver workflow documentation and external file package
FlitStack AI exports all photos, signatures, and barcode images to a structured cloud storage folder (organized by submitter email and submission ID). A manifest CSV maps each Mailchimp contact email to its corresponding file paths. We deliver the complete Field2Base Workflow definition as a documented reference for manual rebuild in Mailchimp Customer Journeys or a separate tool. All exported files are organized in a nested folder structure that mirrors the original Field2Base submission hierarchy for straightforward retrieval.
Platform deep dives
Field2Base
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. All 8 core objects map 1:1 between Field2Base and Mailchimp.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Field2Base and Mailchimp.
Object compatibility
All 8 core objects map 1:1 between Field2Base 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
Field2Base: Not publicly documented — we default to 10 req/s and throttle based on 429 responses.
Data volume sensitivity
Field2Base 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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