CRM migration
Field-level mapping, validation, and rollback between Lemon Tech and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Lemon Tech
Source
Mailchimp
Destination
Compatibility
6 of 8
objects map 1:1 between Lemon Tech and Mailchimp.
Complexity
BStandard
Timeline
1-3 weeks
Overview
Moving from Lemon Tech to Mailchimp is a CRM-to-email-marketing-platform migration, not a CRM-to-CRM move. Lemon Tech organizes data around Entities, Matters, Contacts, and Users with a legal-practice data model; Mailchimp is structured around Audiences, Tags, Segments, and Campaigns with no native case or matter management. We extract contacts and company associations via Lemon Tech's built-in export tooling, map custom entity properties to Mailchimp merge fields, and use tags as the primary segmentation vehicle for data that has no direct equivalent in Mailchimp's flat contact model. Matters, billing records, and SQL Wrapper data do not migrate to Mailchimp because the platform has no equivalent object; we deliver a written record of these for the customer's admin to evaluate for a parallel CRM replacement. Automations, customer journeys, and signup forms do not migrate as code and require rebuild in Mailchimp.
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 Lemon Tech 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.
Lemon Tech
Contact
Mailchimp
Audience Member
1:1Lemon Tech contact records export as structured rows with name, email, phone, address, and any linked entity references. We map each contact to a Mailchimp Audience member via email as the dedupe key. Standard contact fields map to Mailchimp merge fields (FNAME, LNAME, PHONE, ADDRESS). Any linked company or entity reference from Lemon Tech's relational model becomes a tag on the Mailchimp contact (e.g., tag: 'LinkedTo:Acme Corp') since Mailchimp has no entity lookup. Contact status or type in Lemon Tech (client, vendor, referral) maps to a segmented tag group for audience filtering.
Lemon Tech
Entity (Company)
Mailchimp
Tag Group + Merge Field
lossyLemon Tech entities representing companies or organizations do not have a direct Mailchimp equivalent because Mailchimp has no Account or Company object. We decompose each Entity record into two parts: the entity name becomes a Mailchimp merge field (COMPANY) on the Contact record, and the entity-to-contact relationship becomes a tag (e.g., 'Entity:AcmeCorp'). For contacts with multiple linked entities, we create one tag per entity. If a contact has no email (entity-only record), we skip the contact import because Mailchimp requires an email address.
Lemon Tech
Matter
Mailchimp
Tag Group (no direct equivalent)
1:1Lemon Tech Matters are case/project containers with no Mailchimp equivalent. We do not migrate Matters as records. For contacts that are Matter stakeholders, we extract the Matter name and create a tag (e.g., 'Matter:Smith-v-Jones') on the associated contacts to preserve the relationship at the contact level. The Matter status, dates, and billing data cannot be represented in Mailchimp and are flagged in the migration inventory as requiring a parallel CRM or project management tool if the customer needs to retain that data.
Lemon Tech
User
Mailchimp
Mailchimp Account User (out of scope)
1:1Lemon Tech Users map to the Mailchimp account users who will administer the platform post-migration, not to contact records. We do not migrate User records as contacts. During scoping, we identify which Lemon Tech users will be Mailchimp account administrators and the customer provisions those accounts directly in Mailchimp. The mapping is informational: we provide a list of Lemon Tech user emails and recommended Mailchimp permission roles (Admin, Manager, Author) based on their source role context.
Lemon Tech
Custom Entity
Mailchimp
Merge Fields + Tags
lossyLemon Tech custom entities require decomposition because Mailchimp supports a maximum of 40 merge fields per Audience. We inventory all active custom entity types during discovery, identify the fields on each, and map them as follows: scalar values (text, number, date) become Mailchimp merge fields; multi-value or relational fields become tags. If a custom entity has more than 40 distinct fields across all types, we work with the customer to prioritize the 40 highest-value fields and document the remainder in the migration inventory for a potential custom integration or CRM replacement.
Lemon Tech
Attachment
Mailchimp
Not migrated (no equivalent)
1:1Lemon Tech file attachments associated with entities or matters have no Mailchimp equivalent. Mailchimp supports image embedding in campaigns and document links in email body, but not contact-level file attachments. We extract attachment filenames and parent record associations and list them in the migration inventory. If the customer needs to preserve attachment access, we recommend a document management system (SharePoint, Google Drive, Dropbox) with links stored as Mailchimp merge fields or tag metadata.
Lemon Tech
Billing Record
Mailchimp
Not migrated (no equivalent)
1:1Lemon Tech time entries and billing records linked to Matters have no Mailchimp equivalent. Mailchimp has no invoicing, time tracking, or financial record object. We extract the billing record metadata (matter reference, billable amount, date, contact link) and list it in the migration inventory. If the customer needs to retain billing history, we recommend exporting to a spreadsheet or accounting system as a parallel workstream outside the Mailchimp migration scope.
Lemon Tech
SQL Wrapper Data
Mailchimp
Not migrated (no equivalent)
1:1Lemon Tech SQL Wrappers produce relational reporting tables that combine CRM data with custom SQL or third-party sources. These tables have no Mailchimp equivalent because Mailchimp's contact model is flat. We inventory all SQL Wrapper definitions during discovery, flag which wrappers reference live third-party data sources (these cannot be migrated as static records), and deliver a written map of wrapper outputs that the customer's admin can evaluate for re-implementation in a BI tool or a destination CRM if the migration extends beyond Mailchimp.
| Lemon Tech | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact | Audience Member1:1 | Fully supported | |
| Entity (Company) | Tag Group + Merge Fieldlossy | Fully supported | |
| Matter | Tag Group (no direct equivalent)1:1 | Fully supported | |
| User | Mailchimp Account User (out of scope)1:1 | Fully supported | |
| Custom Entity | Merge Fields + Tagslossy | Fully supported | |
| Attachment | Not migrated (no equivalent)1:1 | Fully supported | |
| Billing Record | Not migrated (no equivalent)1:1 | Fully supported | |
| SQL Wrapper Data | Not migrated (no equivalent)1:1 | Mapping required |
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.
Lemon Tech gotchas
No public API for bulk data extraction
SQL Wrapper complexity varies by definition
Custom entity naming conventions are customer-specific
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 inventory
We audit the Lemon Tech instance to identify all active entity types, custom entity definitions, SQL Wrapper outputs, and Matter structures. We document which entity types have email addresses (required for Mailchimp) and which are entity-only. We assess the total record count per entity type and identify any custom entity fields that will exceed Mailchimp's 40-merge-field limit. The discovery output is a written export plan specifying chunk order, estimated export task count, and a preliminary merge field selection ranked by business value.
Mailchimp audience planning and domain authentication
We work with the customer to determine whether one or multiple Mailchimp Audiences are needed. A single Audience is simpler and suits most legal/professional services firms; multiple Audiences (e.g., one per entity type) add segmentation overhead but preserve cleaner contact records if entity types have conflicting field names. We initiate domain authentication (SPF, DKIM, DMARC) in parallel with export preparation because authentication propagation takes 24-72 hours and does not block export work. We also assess the customer's current contact list health (bounce rates, unsubscribe history) using any available Lemon Tech data to plan pre-import list cleaning.
Export extraction and transformation
We run Lemon Tech entity exports in chunked batches using the built-in export function, starting with Contacts (most critical, smallest dependency), then Entities (for company name and entity tags), then custom entities (for merge field mapping). Each export is transformed: entity names are normalized, entity-to-contact relationships are extracted as tags, custom entity fields are mapped to the agreed merge field set, and any SQL Wrapper outputs are inventoried separately as non-migratable artifacts. We validate row counts against the discovery inventory and flag any export that returns fewer records than expected.
Mailchimp import and merge field provisioning
We provision the merge fields in Mailchimp before any contact import using the Mailchimp API or audience settings UI. Merge fields are created with the correct types (text, number, date, address, phone) to match the source data. We then import contacts via the Mailchimp API (for large lists over 5,000) or CSV upload (for smaller lists) in batches of 5,000 records per import call to respect Mailchimp's API rate limits. Each batch emits an import report showing success, failure, and duplicate counts. Failed records are held in a reconciliation queue for manual review or re-export.
Tag application and segment verification
After contact import, we apply entity and Matter tags in batch via the Mailchimp Tags API. Tags are applied per contact based on the entity and Matter associations extracted from Lemon Tech. We verify segment previews in Mailchimp to confirm that tag-based segments resolve correctly (e.g., a segment for 'Tag:Entity:AcmeCorp' returns the expected contact count). If segments return unexpected counts, we troubleshoot the tag format or contact associations before finalizing.
Cutover, validation, and migration inventory delivery
We freeze Lemon Tech exports during the cutover window and run a final delta import of any contacts modified during migration. We validate total contact counts in Mailchimp against the source Lemon Tech export totals and spot-check 25-50 records for field-level accuracy. We deliver the full migration inventory: Matter list, billing record reference, SQL Wrapper output map, and attachment filename index. We do not rebuild Mailchimp Customer Journeys, automations, or signup forms as part of this scope; we deliver a written recommendation document for the customer's admin to rebuild these post-migration.
Platform deep dives
Lemon Tech
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. All 8 core objects map 1:1 between Lemon Tech and Mailchimp.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Lemon Tech and Mailchimp.
Object compatibility
All 8 core objects map 1:1 between Lemon Tech 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
Lemon Tech: Not publicly documented.
Data volume sensitivity
Lemon Tech 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 Lemon Tech to Mailchimp migration scoping. Not seeing yours? Book a call.
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