CRM migration
Field-level mapping, validation, and rollback between Wetroo CRM and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Wetroo CRM
Source
Mailchimp
Destination
Compatibility
4 of 8
objects map 1:1 between Wetroo CRM and Mailchimp.
Complexity
BStandard
Timeline
2-4 weeks
Overview
Wetroo CRM and Mailchimp occupy different positions on the CRM-to-marketing spectrum. Wetroo is a mobile-first sales CRM with pipeline tracking, WhatsApp integration, and drip marketing sequences tied to Leads and Deals. Mailchimp is primarily an email marketing platform with audience management, campaign automation, and CRM-style contact profiles. The migration is primarily a contact-list consolidation: Wetroo Leads and Contacts merge into Mailchimp Audiences, Companies export as address data in custom fields or merge tags, and Deals export as a standalone CSV for sales teams that continue using a separate tool. Drip sequences, WhatsApp conversation threads, and pipeline stages have no Mailchimp equivalent and do not migrate. We work around Wetroo's absence of a bulk-export endpoint by using paginated API calls with API-key auth, calibrate extraction timelines during scoping, and deliver the full migration as an Audience-ready contact list with a deal-history CSV and a written automation rebuild guide.
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 Wetroo 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.
Wetroo CRM
Contact
Mailchimp
Contact (Audience member)
1:1Wetroo Contact records map 1:1 to Mailchimp Audience contacts. Email address is the primary dedupe key. Contact name (first_name, last_name) maps to Mailchimp merge tags FNAME and LNAME. Phone number maps to PHONE merge tag. Lifecycle stage and contact status from Wetroo map to Mailchimp Tags or a custom contact status field that the customer defines during scoping. Custom fields on Contact (text, number, date) map to Mailchimp merge tags created in the Audience before import.
Wetroo CRM
Lead
Mailchimp
Contact (Audience member)
many:1Wetroo Lead and Contact are distinct objects in Wetroo; in Mailchimp they collapse into the same Audience member record. We de-duplicate by email address: if a Lead and a Contact share the same email, they merge into a single Audience contact with tags applied from both source records (e.g., Lead_Source tag carrying the original acquisition channel). Lead source attribution (Facebook, Google, manual) migrates as a Mailchimp Tag or merge tag for segmentation.
Wetroo CRM
Company
Mailchimp
Merge Tags (ADDRESS fields)
lossyWetroo Company records have no direct Mailchimp equivalent because Mailchimp does not have an Account object. We map Company name to COMPANY merge tag, and Company address fields (street, city, state, postal_code, country) to Mailchimp's built-in ADDRESS merge field group. If the customer uses Companies for segmentation, we recommend tagging contacts by Company name rather than importing it as a standalone object.
Wetroo CRM
Deal
Mailchimp
CSV export (no Mailchimp object)
1:1Wetroo Deals (pipeline, stage, value, close date, owner) have no Mailchimp equivalent. Mailchimp does not manage sales pipelines or deal records. We export Deals as a standalone CSV with all standard fields (deal_name, stage, value, expected_close_date, owner_email, company_name) and flag this in the migration scope. The customer uses this CSV in a separate sales tool or imports it to a CRM if one is in place. This is a data export, not a Mailchimp object import.
Wetroo CRM
Activities (Call logs, Notes)
Mailchimp
Contact Notes or Tags
lossyWetroo Activity records (call logs via OBD endpoint, manual notes) cannot become individual records in Mailchimp because Mailchimp has no activity-timeline object. We extract call logs and notes as text and append them as a Contact Note in Mailchimp, or apply a tag (e.g., Call_Logged or Note_Attached) with the timestamp and a short summary. Call duration and disposition migrate as a tag value or as a custom merge tag if the customer prefers structured data over notes.
Wetroo CRM
Custom Fields
Mailchimp
Merge Tags
lossyWetroo custom fields on Leads and Contacts map to Mailchimp merge tags. We create each merge tag in the Mailchimp Audience before import, matching the field type: text fields become text merge tags, date fields become date merge tags, picklist or multi-select fields become either Mailchimp Groups (if the customer prefers segmentation by category) or comma-separated text merge tags. Required fields in Mailchimp merge tag settings are left unchecked to prevent import blocking.
Wetroo CRM
Drip Marketing Sequences
Mailchimp
No equivalent — documented for rebuild
1:1Wetroo drip sequences and sales cadences are automation-layer objects with no exposed schema and no API export endpoint. They do not migrate. We deliver a written automation inventory document during migration scoping: for each active sequence, we document the trigger, step count, step type (email, SMS, delay, condition), and content summary so the customer's admin can rebuild them in Mailchimp Customer Journeys. This document is part of the standard migration scope.
Wetroo CRM
WhatsApp Conversations
Mailchimp
No equivalent — not migratable
1:1WhatsApp message history is stored in Wetroo's messaging layer and accessible via a separate conversation API. Mailchimp is an email-only platform with no WhatsApp, SMS, or chat object. We extract message content and timestamps as a text export (CSV or JSON) for the customer's records, but this data cannot be imported into Mailchimp. The customer reviews this export and rebuilds any WhatsApp-sequence follow-ups as Mailchimp email automations using the contact list we migrate.
| Wetroo CRM | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact | Contact (Audience member)1:1 | Fully supported | |
| Lead | Contact (Audience member)many:1 | Fully supported | |
| Company | Merge Tags (ADDRESS fields)lossy | Fully supported | |
| Deal | CSV export (no Mailchimp object)1:1 | Fully supported | |
| Activities (Call logs, Notes) | Contact Notes or Tagslossy | Fully supported | |
| Custom Fields | Merge Tagslossy | Mapping required | |
| Drip Marketing Sequences | No equivalent — documented for rebuild1:1 | Not supported | |
| WhatsApp Conversations | No equivalent — not migratable1:1 | 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.
Wetroo CRM gotchas
No official bulk-export endpoint complicates migration extraction
Drip sequences and automation logic are not exportable
Seat-tier limits can cause billing surprises during team migration
WhatsApp message history requires separate extraction
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
Scoping and Wetroo API exploration
We audit the Wetroo account via paginated API calls to establish record counts for Leads, Contacts, Companies, Deals, Activities, and custom fields. We test pagination limits by running incremental extraction requests to calibrate the number of API calls required. We document active drip sequences, WhatsApp flows, and pipeline configurations during the same phase. The scoping output is a written scope confirming record counts, field inventory, and which objects are migratable versus export-only versus non-migratable.
Audience schema and merge tag preparation
Before any data loads, we create the Mailchimp Audience and pre-configure all merge tags based on the Wetroo custom field inventory. Merge tags are created in Mailchimp with correct field types (text, date, number, phone). Groups are created for any picklist or multi-select fields the customer wants for segmentation. The Audience is created in a staging state so contacts can be imported without triggering automations until the migration is validated.
Lead and Contact de-duplication and transformation
We run a de-duplication pass across Wetroo Leads and Contacts using email address as the primary key. Overlapping records merge into a single Mailchimp contact with tags applied from both source records (e.g., original_type:Lead and original_type:Contact). Custom field values transform to the matching Mailchimp merge tag format. Phone numbers format to E.164 where possible. Lifecycle stage and lead source from Wetroo become Mailchimp Tags for segmentation.
Suppression list and opt-in status import
We extract any unsubscribed, bounced, or complaint contacts from Wetroo and import them as Mailchimp suppressions before the main contact migration. Opt-in status migrates to Mailchimp's contact status (subscribed, unsubscribed, pending). Contacts without a clear opt-in record are imported as pending to trigger double opt-in confirmation emails, protecting the customer's sender reputation and deliverability. This step runs before the main Audience import to prevent sending to suppressions.
Contact migration, Company export, and Deal CSV generation
We import the transformed Lead and Contact records into the Mailchimp Audience using the Mailchimp API (batch import for records over 500). Company data appends to the ADDRESS merge tag group on each contact. A standalone Deal CSV is generated with all pipeline, stage, value, close date, and owner fields and delivered alongside the migration report. Activity notes and call log summaries attach as contact notes in Mailchimp.
Validation, cutover handoff, and automation rebuild guide delivery
We run a post-migration validation comparing Wetroo record counts against Mailchimp Audience member counts and spot-checking 20-30 records for field completeness. The customer reviews and signs off. We deliver the Deal CSV, the automation rebuild guide (documenting each Wetroo sequence with Mailchimp Customer Journey equivalent), and the suppression import confirmation. We do not rebuild sequences in Mailchimp; that work is the customer's admin responsibility. We offer a one-week post-migration window for reconciliation of any record gaps found during team adoption.
Platform deep dives
Wetroo CRM
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 2 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Standard migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Wetroo CRM and Mailchimp.
Object compatibility
2 of 8 objects need a mapping; the rest are 1:1.
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
Wetroo CRM: Not publicly documented.
Data volume sensitivity
Wetroo CRM 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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