CRM migration

Migrate from Combit CRM to Mailchimp

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

Combit CRM logo

Combit CRM

Source

Mailchimp

Destination

Mailchimp logo

Compatibility

38%

3 of 8

objects map 1:1 between Combit CRM and Mailchimp.

Complexity

BStandard

Timeline

2-4 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from Combit CRM to Mailchimp is a platform-type shift from a full CRM to an email marketing and audience management platform. Combit CRM organizes data around Addresses (Anschriften), Contacts (Kontakte), Companies (Firmen), Projects (Projekte), and Activities (Aktivitäten) with a configurable pipeline model; Mailchimp uses Audiences containing Members with merge fields and tags. We extract Combit data via direct database access for on-premise deployments or structured CSV exports from the cloud version, then map contact records to Mailchimp Members, companies to merge fields or tags, and activity history to custom fields or notes where Mailchimp's data model supports it. Mailchimp automations, campaigns, forms, and reports do not migrate; we deliver a written inventory of these for the customer's marketing team to rebuild in Mailchimp's automation builder.

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

Combit CRM logo

Combit CRM

What's pushing teams away

  • Interface feels technical and sophisticated—multiple reviewers describe the UI as complex, with input masks that lack a modern design feel.
  • Difficulty mapping daily work processes—users report that intuitive process mapping is harder than expected despite the automation capabilities.
  • Feature gaps relative to modern CRMs—some reviewers noted the platform required more features than it provided during their evaluation period.
  • German-only language barrier—businesses outside German-speaking regions cannot use the platform, limiting international team adoption.

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 Combit CRM objects map to Mailchimp

Each row shows how a Combit CRM 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.

Combit CRM

Contact (Kontakte)

maps to

Mailchimp

Member

1:1
Fully supported

Combit CRM Contact records map directly to Mailchimp Members within a target Audience. The contact's email address becomes the Member email, first name and last name map to FNAME and LNAME merge fields, and phone number maps to PHONE. We resolve the Combit contact-to-address link to populate the address merge fields (ADDRESS, CITY, STATE, ZIP, COUNTRY) on the Member record. Any duplicate email addresses across Combit contacts trigger a reconciliation step with the customer before import to avoid Mailchimp's hard bounce policy triggering on re-imports.

Combit CRM

Company (Firmen)

maps to

Mailchimp

Merge Field or Tag

lossy
Fully supported

Combit CRM Company records have no direct Mailchimp equivalent because Mailchimp does not have a native company or account hierarchy. We map company name to a custom merge field (COMPANY) on the Audience, and company industry or type to a Tag applied to each Member linked to that Company. If the customer needs to track multiple contacts per company, the company name tag approach enables audience segmentation by organization without requiring a separate company object.

Combit CRM

Address (Anschriften)

maps to

Mailchimp

Merge Fields (ADDRESS, CITY, STATE, ZIP, COUNTRY)

1:1
Fully supported

Combit CRM Address records hold physical location data that maps to Mailchimp's standard address merge field set. We extract the address components (street, city, state/province, postal code, country) from the Address record linked to each Contact and populate the corresponding Mailchimp merge fields on the Member. Mailchimp's address merge field is a compound field; we split the Combit address string into its components during the transform phase.

Combit CRM

Custom Fields (Benutzerdefinierte Felder)

maps to

Mailchimp

Merge Fields

lossy
Mapping required

Combit CRM user-defined fields across Contact, Company, and Project objects map to Mailchimp merge fields within the target Audience. We identify all custom field definitions during discovery, translate the German field labels to English for Mailchimp merge field names, and map Combit data types to Mailchimp-supported field types (text, number, date, phone, address, birthday, URL, dropdown). Mailchimp allows up to 40 merge fields per audience, which is sufficient for most Combit CRM custom field inventories but requires prioritization if the customer has more than 40 custom fields.

Combit CRM

Tags and Categories (Kategorien)

maps to

Mailchimp

Tag

1:1
Mapping required

Combit CRM categorical tags on Contact records map to Mailchimp Tags on the corresponding Member. Multi-value tags from Combit (a Contact can have multiple categories) migrate as multiple Tag records in Mailchimp. We consolidate Combit's German-language category labels to English tag names during the transform phase so that Mailchimp's audience segmentation works with the customer's current naming conventions.

Combit CRM

Activity: Email (Aktivitäten)

maps to

Mailchimp

Member Note or Merge Field

lossy
Fully supported

Combit CRM Activity records of type email do not migrate to Mailchimp as native email activity because Mailchimp tracks campaign-sent email history only. We extract the last meaningful email interaction date from Combit Activity records and populate a custom merge field (LAST_EMAIL_DATE) on the Member. The customer's marketing team decides whether to surface this in audience segments based on recency of last contact.

Combit CRM

Project (Projekte)

maps to

Mailchimp

Tag or Merge Field

lossy
Fully supported

Combit CRM Projects span multiple contacts and activities but have no direct Mailchimp equivalent. We map project name or project status to a Tag on all Members associated with that Project via the Combit project-to-contact relationship. Alternatively, a PROJECT_NAME merge field can store the associated project identifier for each contact. The customer selects the strategy during scoping based on whether they need to segment by active project membership.

Combit CRM

Deal (Verkäufe/Geschäfte)

maps to

Mailchimp

Tag

lossy
Fully supported

Combit CRM Deal records track pipeline stages and deal values that do not map to Mailchimp's data model. We extract the current deal stage and deal value and apply a tag (DEAL_STAGE_[stage name]) to the associated Member records. Deal value can also populate a DEAL_VALUE merge field if the customer wants to use deal size as a criterion for audience segmentation or personalization. Pipeline structure itself does not migrate; Mailchimp's automation triggers operate on audience membership and engagement events rather than deal stages.

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.

Combit CRM logo

Combit CRM gotchas

High

No documented REST API for automated migration

Medium

German-language interface complicates discovery

Medium

On-premise deployments require database-level extraction

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

  • No REST API for Combit CRM extraction

    Combit CRM has no publicly documented REST API, so we cannot run API-based migration jobs directly against it. For on-premise deployments we negotiate read-only database credentials and run extraction queries against the proprietary database schema, documenting table structures, primary keys, and foreign key relationships before writing transform logic. For cloud deployments we use the application's built-in CSV or Excel export functionality, negotiating a custom export scope with the customer if the default export is limited. All Combit field names are in German and must be translated to English during the mapping phase before any Mailchimp merge field can be created.

  • Mailchimp lacks native company and activity history objects

    Mailchimp is an email marketing platform, not a CRM. It does not have native equivalents for Combit's Company (Firmen), Project (Projekte), or Activity (Aktivitäten) objects. We handle this by flattening company data into merge fields, mapping projects to tags, and converting activity timestamps to custom merge fields. Email activity history from Combit does not migrate to Mailchimp's activity timeline because Mailchimp only tracks campaign-sent email opens and clicks. The customer's marketing team should set expectations that existing Combit email logs will not appear in Mailchimp's reporting views.

  • German-language Combit fields require translation

    Combit CRM is a German-language-only platform. All field names, picklist values, category labels, and workflow names appear in German in the database schema or export files. During discovery we work with bilingual contacts or engage a German-speaking analyst to confirm the semantic meaning of each field before mapping to Mailchimp merge field names. Incorrect translation of picklist values (for example, mapping a German sales-stage label to a Mailchimp tag with a German label) produces segmentation errors that may not surface until post-migration campaign sends.

  • DKIM and DMARC required for bulk email delivery

    Google and Yahoo's 2024 sender requirements made DKIM and DMARC mandatory for bulk senders, and Mailchimp enforces these standards. If Combit CRM was used with a sending domain that lacks proper authentication records, the Mailchimp migration introduces a new sending domain that must be authenticated before bulk campaigns can send. We verify domain authentication status during scoping and flag any missing DNS records so that the customer can add DKIM and DMARC entries before the first campaign send. Skipping this step means emails route to spam folders regardless of content quality.

Migration approach

Six steps for a successful Combit CRM to Mailchimp data migration

  1. Discovery and extraction method selection

    We audit the Combit CRM deployment to determine whether it is on-premise (requiring database-level extraction) or cloud (using CSV or Excel export). We inventory all object types in use (Contacts, Companies, Addresses, Projects, Activities, Deals, Custom Fields, Tags), count records per object, and identify any German-language field labels requiring translation. We also confirm the Mailchimp audience structure, existing merge fields, and authentication status of the sending domain. The discovery output is a written migration scope, extraction method recommendation, and German-to-English field translation worksheet.

  2. Field mapping and German label translation

    We map every Combit CRM field to a Mailchimp destination: Contact fields to Member properties or merge fields, Company fields to merge fields or tags, Address fields to the standard Mailchimp address merge fields, and Custom Fields to merge fields within the 40-field limit. Multi-value tags from Combit map to Mailchimp Tags applied per Member. We translate all German field labels and picklist values to English during this phase and document the translation in the mapping worksheet for validation by a bilingual stakeholder.

  3. Mailchimp audience preparation

    We configure the Mailchimp target Audience before any data import: creating the required merge fields (PHONE, COMPANY, any custom merge fields from the mapping), setting tag categories for project and deal-stage tags, and verifying that DKIM and DMARC authentication records are published for the sending domain. If the customer has multiple Combit object types to preserve (Contacts plus Companies), we confirm the tag-naming strategy during this step so that segmentation by organization works in Mailchimp's automation builder.

  4. Data extraction and deduplication

    We extract Combit CRM data using the agreed method: direct database queries for on-premise deployments or structured CSV/Excel exports for cloud deployments. During extraction we run deduplication logic on contact email addresses, flagging duplicates for customer resolution before import (Mailchimp's hard bounce policy penalizes re-importing bounced addresses). We also resolve the Combit contact-to-address and contact-to-company relationships at this stage, associating address and company data with each contact record for the Member import.

  5. Transform and Member import

    We transform the extracted data into Mailchimp's JSON-based Member format and import into the target Audience using Mailchimp's API with rate-limit handling (100-5,000 requests per minute depending on the customer's Mailchimp tier). Tags are applied in a second pass after Member creation to avoid exceeding Mailchimp's per-call payload limits. We run the import in batches of 500-1,000 Members, reconciling the import count against the Combit source record count after each batch. Custom merge field values that exceed Mailchimp's field length limits are truncated and flagged in the reconciliation report.

  6. Cutover, validation, and handoff

    We freeze Combit CRM writes during cutover, run a final delta migration of any records modified during the migration window, and validate the Mailchimp audience against the Combit source record counts. We deliver a written inventory of Combit automations and campaigns that do not migrate, with recommendations for rebuilding equivalent Mailchimp automation journeys. We support a three-day hypercare window where we resolve any data quality issues or merge field gaps identified by the customer's marketing team. Post-migration Mailchimp automation rebuild, campaign design, and form creation are outside standard scope and can be scoped as a separate engagement.

Platform deep dives

Context on both ends of the pair

Combit CRM logo

Combit CRM

Source

Strengths

  • Deep workflow automation with configurable triggers across departments and record types.
  • Highly flexible data model with user-defined fields and customizable pipelines.
  • Strong integration connectivity for external tools and peripheral systems.
  • Configurable interfaces and data entry masks tailored to organization-specific needs.
  • Supports both cloud and on-premise deployment options.

Weaknesses

  • Platform is German-language only, limiting adoption for non-German-speaking teams.
  • No publicly documented REST API, restricting programmatic access and migration automation.
  • Interface described as technically sophisticated and not intuitively modern.
  • Fewer third-party integrations compared to major global CRM platforms.
  • Limited availability of English-language documentation and support resources.
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 Combit CRM and Mailchimp.

B

Overall complexity

Standard migration

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

  • Object compatibility

    A

    All 8 core objects map 1:1 between Combit CRM 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

    Combit CRM: Not publicly documented.

  • Data volume sensitivity

    B

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

Estimator

Estimate your Combit CRM 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 Combit CRM to Mailchimp data migrations

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

Can't find your answer?

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

Book a free 30 minute consultation

Migrations under 10,000 contacts with straightforward field mapping and no complex Combit object relationships land in two to four weeks. Migrations with 10,000-50,000 contacts, extensive custom fields, multiple object types (contacts, companies, projects), or activity history to preserve as custom merge fields move to four to eight weeks. Discovery and field translation take one to two weeks regardless of size, followed by extraction, transform, and import phases that scale with record volume.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Combit CRM.
Land in Mailchimp, intact.

Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.

Accuracy guarantee Rollback included Quote in 1 business day