CRM migration
Field-level mapping, validation, and rollback between ArkCase and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
ArkCase
Source
Mailchimp
Destination
Compatibility
12 of 12
objects map 1:1 between ArkCase and Mailchimp.
Complexity
BStandard
Timeline
48–72 hours
Overview
ArkCase organizes case management around persons, organizations, cases, complaints, tasks, and documents — a relational model built for government compliance and legal workflow. Mailchimp organizes around audiences of contacts with merge fields, tags, and automation triggers — a flat, permission-based model built for email marketing at scale. This migration pulls your ArkCase person and organization records, maps the contact fields you want to use for email campaigns, and loads them into one or more Mailchimp audiences. We surface ArkCase-specific data — case references, organization affiliations, custom properties — as Mailchimp merge fields or tags so you can still segment by source context. Workflows built in ArkCase's BPMN 2.0 engine do not migrate; they must be rebuilt in Mailchimp's automation builder. Documents and file attachments have no Mailchimp equivalent and are not transferred. The migration starts with FlitStack AI connecting to ArkCase via its REST API, extracting Person and Organization records with custom properties and association links. A consent filter is applied to respect opt‑out flags and deduplicate contacts. Extracted fields map to Mailchimp merge fields; organization affiliations and case context appear as tags. A bulk load runs first, followed by a 24‑48‑hour delta window to capture any changes during cutover. All steps are logged, delivering an audit CSV that maps each Mailchimp contact back to its ArkCase Person ID. Workflow definitions and documents are not transferred, but a JSON export of workflow steps and a file‑inventory CSV are provided for manual rebuilding.
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 ArkCase 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.
ArkCase
Person
Mailchimp
Contact (Mailchimp Audience Member)
1:1ArkCase Person records map directly to Mailchimp contacts. The Person's first name, last name, and email address become Mailchimp's FNAME, LNAME, and EMAIL merge fields. Mobile phone maps to PHONE if present. Organization affiliation is preserved as a tag or merge field rather than a linked object.
ArkCase
Person.email
Mailchimp
Contact EMAIL
1:1The primary email address on an ArkCase Person record becomes the Mailchimp contact's email address, which serves as the unique identifier for the audience member. Secondary emails on ArkCase persons are preserved as a custom merge field. During migration, the primary email serves as the unique key; duplicate email entries in ArkCase are flagged for review. Additional email addresses are stored as custom merge fields (e.g., EMAIL_2).
ArkCase
Person.firstName + Person.lastName
Mailchimp
Contact FNAME + LNAME
1:1ArkCase stores first name and last name as separate Person properties. Both map directly to Mailchimp's standard FNAME and LNAME merge fields. Full-name concatenation is avoided; Mailchimp templates reference FNAME and LNAME separately. If a Person record contains only a single FULL_NAME field without split components, FlitStack AI attempts to parse the name into first and last parts, applying a fallback to the FULL_NAME merge field when parsing is ambiguous.
ArkCase
Person.phoneNumber
Mailchimp
Contact PHONE
1:1ArkCase Person phone number maps to Mailchimp's PHONE merge field. Phone numbers are normalized to E.164 format during migration where ArkCase stores country codes; otherwise, a custom merge field is created for extended phone data. If a Person has multiple phone numbers (mobile, work, home), the primary number populates PHONE while others are stored in additional custom merge fields such as PHONE_MOBILE or PHONE_WORK.
ArkCase
Organization
Mailchimp
Contact (tagged or merge field)
1:1ArkCase Organizations are not Mailchimp native objects. We create a merge field (ORGANIZATION_NAME) on the Mailchimp contact and tag each contact with the organization name. If you maintain multiple organizations per Person (N:N in ArkCase), all affiliations are captured as comma-separated tags.
ArkCase
Organization.address
Mailchimp
Contact ADDRESS
1:1ArkCase Organization addresses map to Mailchimp's compound ADDRESS merge field (ADDR1, ADDR2, CITY, STATE, ZIP, COUNTRY). Primary organization address is used; secondary addresses are preserved as a custom merge field. When an Organization has multiple locations, each additional address is stored as a custom merge field (e.g., ADDRESS_2) with the same component breakdown, ensuring you can reference each physical office in your campaigns.
ArkCase
Case
Mailchimp
Contact (tag or merge field)
1:1ArkCase Cases have no Mailchimp equivalent. We preserve the most recent case number, case status, and case type as merge fields (RECENT_CASE_NUMBER, CASE_STATUS) and apply a tag (HAS_OPEN_CASE) when a Person is associated with an open case. Historical case associations are not migrated to avoid audience bloat.
ArkCase
Complaint
Mailchimp
Contact (tag or merge field)
1:1ArkCase Complaints are compliance records. We map complaint status (Open, Closed, Pending) as a tag on the associated Person contact and preserve the most recent complaint reference number in a COMPLAINT_REF merge field. Full complaint history is not migrated to Mailchimp's flat contact model.
ArkCase
Person.customProperties
Mailchimp
Contact MERGE FIELDS
1:1ArkCase custom fields on Person records — such as Preferred Contact Method, Source Channel, or Custom Dropdown — are created as Mailchimp merge fields. Pick-list values in ArkCase are mapped value-by-value to Mailchimp merge-field dropdown options during the migration. If a custom field contains a list of permissible values, FlitStack AI replicates the same options in Mailchimp's dropdown configuration; any new values added after migration are added manually in Mailchimp.
ArkCase
Task
Mailchimp
Contact (tag or merge field)
1:1ArkCase Tasks have no Mailchimp equivalent. We surface the Person's most recent task status (Open Tasks count) as a numeric merge field (OPEN_TASKS_COUNT) and tag contacts with task priority levels for segmentation. Full task history is not migrated. If a Person has no open tasks, the OPEN_TASKS_COUNT field is set to zero, and the contact receives a NO_OPEN_TASKS tag for straightforward filtering.
ArkCase
Document / Attachment
Mailchimp
N/A
1:1ArkCase documents and file attachments have no Mailchimp equivalent. These are not migrated. We provide a file inventory export so you can document which documents are associated with which Person records for compliance purposes. The file inventory CSV lists each document's ArkCase ID, associated Person ID, file name, and last modified date, allowing your compliance team to maintain a linkage even though the files themselves remain in ArkCase.
ArkCase
Workflow / BPMN
Mailchimp
N/A
1:1ArkCase BPMN 2.0 workflows have no Mailchimp automation equivalent. Mailchimp's automation builder uses a different trigger-action model. We export workflow definitions as a JSON reference for your team to rebuild in Mailchimp Customer Journeys. The JSON export captures each step’s name, condition, assignee, and timeout, providing a blueprint that your Mailchimp team can translate into Customer Journey blocks. This reference does not include execution history or variable data.
| ArkCase | Mailchimp | Compatibility | |
|---|---|---|---|
| Person | Contact (Mailchimp Audience Member)1:1 | Fully supported | |
| Person.email | Contact EMAIL1:1 | Fully supported | |
| Person.firstName + Person.lastName | Contact FNAME + LNAME1:1 | Fully supported | |
| Person.phoneNumber | Contact PHONE1:1 | Fully supported | |
| Organization | Contact (tagged or merge field)1:1 | Fully supported | |
| Organization.address | Contact ADDRESS1:1 | Fully supported | |
| Case | Contact (tag or merge field)1:1 | Fully supported | |
| Complaint | Contact (tag or merge field)1:1 | Fully supported | |
| Person.customProperties | Contact MERGE FIELDS1:1 | Fully supported | |
| Task | Contact (tag or merge field)1:1 | Fully supported | |
| Document / Attachment | N/A1:1 | Fully supported | |
| Workflow / BPMN | N/A1:1 | 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.
ArkCase gotchas
Custom BPMN workflows do not auto-migrate between instances
Time entries with inactive user references will fail import
FOIA request stage names vary by jurisdiction and require explicit mapping
Open-source tier lacks a documented bulk API
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
Export ArkCase Person and Organization records via REST API
FlitStack AI connects to your ArkCase instance using the REST API with scoped read access. We extract all Person records, Organization records, and their association links (Person-Organization N:N relationships). For ArkCase Enterprise deployments with custom Person properties, we introspect the custom field schema via the API before extraction to ensure all fields are captured. Document references (file IDs) are inventoried separately for compliance documentation.
Apply consent filter and deduplicate contact records
Before loading into Mailchimp, we apply your specified email consent criteria from the ArkCase Person record — typically a consent flag, a 'Do Not Contact' field, or a communications preference property. We deduplicate contacts by email address ( ArkCase allows duplicate Persons with the same email) and flag contacts with no email address for manual resolution. This step ensures your Mailchimp audience starts clean and reflects your actual email-permissioned list.
Map Person fields to Mailchimp merge fields and create audience structure
We create your Mailchimp audience and set up merge fields corresponding to your ArkCase Person schema — standard fields (FNAME, LNAME, EMAIL, PHONE, ADDRESS) plus custom merge fields for ArkCase properties without Mailchimp equivalents. If you need multiple Mailchimp audiences (e.g., segmented by ArkCase organization or case status), we configure audience structure before import. Tags are set up for ArkCase organization affiliations, case associations, and complaint status.
Run sample migration with field-level diff against Mailchimp
A representative slice — typically 100–500 ArkCase contacts — migrates into your Mailchimp audience first. We generate a field-level diff showing every merge field value in both systems so you can verify mapping correctness, tag application, and consent filtering before the full run. This is where you confirm whether the surface-level case and complaint data meets your email marketing needs or if you need additional fields surfaced.
Execute full migration with delta-pickup window and audit log
The full ArkCase person and organization dataset loads into Mailchimp via Mailchimp's API. A delta-pickup window (24–48 hours) captures any ArkCase contacts modified or added during cutover. Every migration operation is logged — record count, timestamp, source ID, destination ID. FlitStack AI delivers an audit CSV mapping each Mailchimp contact back to its ArkCase Person ID for traceability. One-click rollback is available if reconciliation reveals unexpected gaps.
Platform deep dives
ArkCase
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. All 8 core objects map 1:1 between ArkCase and Mailchimp.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across ArkCase and Mailchimp.
Object compatibility
All 8 core objects map 1:1 between ArkCase 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
ArkCase: Not publicly documented for any tier.
Data volume sensitivity
ArkCase 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 ArkCase to Mailchimp migration scoping. Not seeing yours? Book a call.
Walk through your ArkCase to Mailchimp migration with a real engineer — 30 minutes, free, written quote within 24 hours.
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