CRM migration

Migrate from ArkCase to Mailchimp

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

ArkCase logo

ArkCase

Source

Mailchimp

Destination

Mailchimp logo

Compatibility

100%

12 of 12

objects map 1:1 between ArkCase and Mailchimp.

Complexity

BStandard

Timeline

48–72 hours

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

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.

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

ArkCase logo

ArkCase

What's pushing teams away

  • Organisations report that the open-source tier ships with minimal support and no high-availability clustering, causing reliability concerns for production workloads that would require Enterprise pricing to resolve.
  • The learning curve for non-technical staff around BPMN workflow design is steeper than marketed — legal teams frequently need external consultants to build and maintain non-trivial routing logic.
  • Integration with third-party ECM repositories requires custom configuration that is not always well-documented, leading to support tickets and extended implementation timelines.
  • The analytics and reporting module on the open-source tier is described as limited, pushing growing organisations toward the paid tiers or an external BI tool, which adds cost and complexity.

Choosing

Mailchimp logo

Mailchimp

What's pulling them in

  • Generous free tier with up to 500 contacts allows small teams to validate email marketing before committing to a paid plan.
  • Intuitive drag-and-drop email builder and 130+ templates let non-technical users produce professional campaigns without HTML or CSS knowledge.
  • 300+ native integrations, especially Canva and Shopify, make it easy to connect existing tools without custom development work.
  • Detailed open-rate, click-through, and campaign analytics give small businesses actionable insights without a dedicated marketing team.
  • One-platform consolidation of email campaigns, automations, landing pages, and ads reduces tool sprawl for lean marketing teams.

Object mapping

How ArkCase objects map to Mailchimp

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

maps to

Mailchimp

Contact (Mailchimp Audience Member)

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact EMAIL

1:1
Fully supported

The 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

maps to

Mailchimp

Contact FNAME + LNAME

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact PHONE

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact (tagged or merge field)

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact ADDRESS

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact (tag or merge field)

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact (tag or merge field)

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact MERGE FIELDS

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

Contact (tag or merge field)

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

N/A

1:1
Fully supported

ArkCase 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

maps to

Mailchimp

N/A

1:1
Fully supported

ArkCase 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.

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.

ArkCase logo

ArkCase gotchas

High

Custom BPMN workflows do not auto-migrate between instances

Medium

Time entries with inactive user references will fail import

Medium

FOIA request stage names vary by jurisdiction and require explicit mapping

Low

Open-source tier lacks a documented bulk API

Mailchimp logo

Mailchimp gotchas

High

Contact count includes unsubscribed and non-subscribed records

High

Automation workflows cannot be exported

Medium

Account suspensions trigger silently during migration

Medium

Template HTML is Mailchimp-specific and may not render in other platforms

Medium

E-commerce data requires active store connection

Pair-specific challenges

  • ArkCase N:N Person-Organization associations collapse into Mailchimp tags

    ArkCase allows a Person to be associated with multiple Organizations simultaneously — a primary association plus N secondary ones (Authorized Representative, Billing Contact, etc.). Mailchimp contacts have no Organization object; we tag each contact with every organization affiliation and set the primary as ORGANIZATION_NAME merge field. If your ArkCase setup relies heavily on multi-org contacts for routing or segmentation, this flat model loses the relational hierarchy. We surface all association types as tags during migration so your Mailchimp segmentation can still filter by association type.

  • Mailchimp counts ALL contacts toward billing — including unsubscribed and cleaned

    ArkCase Person records include all individuals regardless of email consent status. Mailchimp's billing is contact-count-based and includes unsubscribed contacts and cleaned (deleted) addresses that still exist in your audience. Migrating your full ArkCase person database without pre-filtering for email consent will inflate your Mailchimp bill. We recommend applying an ArkCase consent-status filter (or rebuilding it from your data) before migration so only opted-in contacts enter Mailchimp as active audience members.

  • Case and Complaint records have no Mailchimp equivalent — only surface data migrates

    ArkCase's core value for legal and government users is its case-management schema — Cases with priority, status, assignees, documents, and audit trails. Mailchimp has no concept of a case. We only surface the most recent case number, case status, and complaint reference as merge fields on the contact. The full case history, associated documents, caseassignee relationships, and audit trails remain in ArkCase. You will need to maintain ArkCase access or an alternative system for case-management operations after the contact data moves to Mailchimp.

  • ArkCase BPMN workflows do not export in any Mailchimp-compatible format

    ArkCase workflows are authored in BPMN 2.0 XML and stored within the ArkCase workflow engine. Mailchimp's automation builder uses a trigger-condition-action model with Customer Journey blocks — there is no bridge between BPMN XML and Mailchimp's JSON-based automation format. We export your ArkCase workflow definitions as a structured JSON reference file with step-by-step logic that your Mailchimp team can use to rebuild automations in Customer Journeys. This is a manual rebuild effort; allow 2–4 weeks depending on workflow complexity.

  • ArkCase custom Person properties require merge-field creation before import

    ArkCase allows unlimited custom fields on Person records — Preferred Contact Method, Client Segment, Internal Department, and other business-specific properties. Mailchimp merge fields must be created at the Audience level before data is imported. If your ArkCase Person schema has more than 30 custom properties, Mailchimp's merge-field limit per Audience (60 standard fields) requires prioritization. We identify the most campaign-relevant custom fields during discovery and map the rest as reference notes in a companion CSV.

Migration approach

Six steps for a successful ArkCase to Mailchimp data migration

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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

Context on both ends of the pair

ArkCase logo

ArkCase

Source

Strengths

  • Open-source core with no per-record licensing, removing artificial data-caps on the free tier.
  • FedRAMP, HIPAA, and HITECH compliance certifications are pre-built, not add-ons, reducing compliance overhead for government and healthcare customers.
  • RESTful API and SDK are available on all tiers, including open source, enabling programmatic data access and integration.
  • BPMN 2.0 workflow engine ships with out-of-the-box templates for FOIA, ROI, and data-privacy processes.
  • Multi-language localisation (English, French, Italian, German, Spanish) is included across all tiers.

Weaknesses

  • High-availability clustering and the full analytics module are gated behind Enterprise Gold pricing, not available on the open-source tier.
  • No native bulk-export or bulk-import UI — large-volume data movement requires API scripting or professional services engagement.
  • The open-source tier offers only online-documentation support, with no named support engineer or SLA on the free plan.
  • Medical OCR/NLP AI and audio/video transcription engines are Platinum-tier exclusives, not available on Enterprise Gold.
  • Pricing beyond named-user tiers involves custom quotes and volume discounts that are not publicly standardised, complicating budget forecasting.
Mailchimp logo

Mailchimp

Destination

Strengths

  • Free plan up to 500 contacts makes it the lowest-friction entry point for new email marketers.
  • Drag-and-drop builder and template library produce polished emails without design or coding skills.
  • Strong deliverability reputation backed by years of email infrastructure expertise.
  • 300+ native integrations cover the most common marketing stack combinations out of the box.
  • Consolidated platform for email, automation, landing pages, and ads reduces the number of tools small teams must manage.

Weaknesses

  • Contact-based pricing model charges for unsubscribed and non-subscribed records, inflating costs relative to competitors.
  • Five-step automation limit on Standard tier forces upgrades for basic customer journeys, a frequently cited frustration.
  • Template HTML is Mailchimp-specific and does not export cleanly for use in other email platforms.
  • Post-Intuit roadmap uncertainty means customers cannot confidently plan long-term platform investments.
  • Account suspension risk without clear pre-warning disrupts campaign scheduling for affected businesses.

Complexity grading

How hard is this migration?

Standard CRM migration. All 8 core objects map 1:1 between ArkCase and Mailchimp.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across ArkCase and Mailchimp.

  • Object compatibility

    A

    All 8 core objects map 1:1 between ArkCase and Mailchimp.

  • 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

    ArkCase: Not publicly documented for any tier.

  • Data volume sensitivity

    B

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

Estimator

Estimate your ArkCase to Mailchimp 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 ArkCase to Mailchimp data migrations

Answers to the questions buyers ask most during ArkCase to Mailchimp migration scoping. Not seeing yours? Book a call.

Can't find your answer?

Walk through your ArkCase to Mailchimp migration with a real engineer — 30 minutes, free, written quote within 24 hours.

Book a free 30 minute consultation

Most ArkCase-to-Mailchimp migrations complete in 48–72 hours for under 50,000 contact records. Larger ArkCase deployments with extensive custom Person properties or multiple organization affiliations extend to 5–7 days. The longest step is typically pre-migration discovery — identifying which ArkCase Person properties to map as merge fields and confirming your consent-filtering criteria. Actual API extraction and Mailchimp import runs in hours; the delta-pickup window adds 24–48 hours of post-cutover coverage.

Adjacent paths

Related migrations to explore

Ready when you are

Move from ArkCase.
Land in Mailchimp, intact.

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