CRM migration
Field-level mapping, validation, and rollback between Unanet CRM by Cosential and Mailchimp. We move data and schema; workflows are rebuilt natively in Mailchimp.
Unanet CRM by Cosential
Source
Mailchimp
Destination
Compatibility
10 of 10
objects map 1:1 between Unanet CRM by Cosential and Mailchimp.
Complexity
BStandard
Timeline
24–72 hours
Overview
Unanet CRM by Cosential is a purpose-built relationship and proposal management platform designed specifically for Architecture, Engineering, and Construction firms, storing contacts, companies, pursuits, custom objects, and proposal templates within a unified record graph that reflects AEC project lifecycles. Mailchimp operates as a permission-based email marketing platform organized around subscribers, audiences, and campaign automation — it fundamentally lacks native deal tracking, proposal automation, project-based CRM concepts, or any equivalent to pursuit pipeline stages. The migration transfers Unanet contact records including name, email, phone, address, and custom field values into Mailchimp subscribers via the Mailchimp API, mapping company names to merge fields and preserving Unanet contact labels as Mailchimp tags for segmentation purposes. Pursuits, pipeline stages, probability weights, and proposal workflows have no Mailchimp counterpart — FlitStack flags these elements for manual rebuild within Mailchimp's automation tools or external systems. Activity history including calls, meetings, and notes is preserved as Mailchimp notes attached to individual subscriber records with original timestamps retained. The migration leverages Mailchimp's bulk import API with comprehensive field-level validation before final commit to ensure data integrity.
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 Unanet CRM by Cosential 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.
Unanet CRM by Cosential
Contact
Mailchimp
Subscriber
1:1Unanet contact records map directly to Mailchimp subscribers within a designated Audience. The primary email address field becomes the subscriber key used by Mailchimp for identification and deduplication — duplicate email addresses are flagged and surfaced for resolution before the bulk import operation begins. First name, last name, and physical address fields map to Mailchimp's standard subscriber fields without transformation required.
Unanet CRM by Cosential
Company
Mailchimp
Merge Field (COMPANY) + Tags
1:1Unanet company name data migrates to Mailchimp's built-in COMPANY merge field on the subscriber record. If multiple companies are associated with a single contact record in Unanet, the primary company becomes the merge field value while additional company associations are preserved as tags formatted as 'Secondary: Company X' for reference and segmentation purposes.
Unanet CRM by Cosential
Pursuit / Opportunity
Mailchimp
NO EQUIVALENT
1:1Unanet pursuits track project-based opportunities with stage, probability, and value — Mailchimp has no deal or pipeline concept. These records are exported to CSV for reference and rebuilt manually in Mailchimp's automation sequences if applicable. No automatic translation is possible.
Unanet CRM by Cosential
Custom Fields (Contact)
Mailchimp
Merge Fields
1:1Unanet contact custom fields map to Mailchimp merge fields within the target Audience. Mailchimp allows up to 40 merge fields per audience — fields exceeding this limit or requiring multi-value storage are handled as tags or dropped with explicit disclosure before migration runs.
Unanet CRM by Cosential
Contact Labels / Tags
Mailchimp
Mailchimp Tags
1:1Unanet contact labels such as 'Decision Maker', 'VIP Client', 'AEC Industry', or other categorization flags migrate as Mailchimp subscriber tags applied to the corresponding subscriber record. Tags are preserved exactly as named in Unanet with uppercase normalization applied for Mailchimp compatibility and searchability. Duplicate tags that would result from the migration are merged during the import process to maintain a clean tag taxonomy.
Unanet CRM by Cosential
Notes
Mailchimp
Subscriber Notes
1:1Unanet contact notes and company notes migrate as Mailchimp notes attached to the subscriber record. The original timestamp and note author are appended to the note body for full traceability back to the source record. Long notes exceeding Mailchimp's 2,000-character limit per note are truncated at that boundary with a reference link included pointing to the full original text location.
Unanet CRM by Cosential
Activity History (Call/Email/Meeting)
Mailchimp
NO EQUIVALENT
1:1Unanet activity logs including calls logged, emails sent, and meetings scheduled have no direct Mailchimp equivalent for this type of historical engagement tracking. Mailchimp tracks campaign engagement metrics including opens, clicks, and unsubscribes on its own timeline starting from first campaign activity. Activity history is exported as a reference CSV file rather than migrated as operational data within the Mailchimp platform.
Unanet CRM by Cosential
Proposal Templates
Mailchimp
NO EQUIVALENT
1:1Unanet proposal automation binds contact and pursuit data to branded templates for submission — Mailchimp has no proposal generation or template-based document automation. Proposal templates are out of scope for migration and must be recreated in a dedicated proposal tool.
Unanet CRM by Cosential
User / Owner Assignment
Mailchimp
NO EQUIVALENT
1:1Unanet users and owners assigned to contacts and pursuits have no Mailchimp equivalent — Mailchimp subscribers are not assigned to team members. Owner information is exported as a reference merge field but does not function as an assignment mechanism in Mailchimp.
Unanet CRM by Cosential
Attachment / File
Mailchimp
NO EQUIVALENT
1:1Unanet file attachments (proposals, resumes, project profiles) linked to contacts cannot migrate to Mailchimp — Mailchimp does not store file attachments on subscriber records. Attachments are exported with reference paths and must be re-hosted separately or linked via merge fields pointing to a document management URL.
| Unanet CRM by Cosential | Mailchimp | Compatibility | |
|---|---|---|---|
| Contact | Subscriber1:1 | Fully supported | |
| Company | Merge Field (COMPANY) + Tags1:1 | Fully supported | |
| Pursuit / Opportunity | NO EQUIVALENT1:1 | Fully supported | |
| Custom Fields (Contact) | Merge Fields1:1 | Fully supported | |
| Contact Labels / Tags | Mailchimp Tags1:1 | Fully supported | |
| Notes | Subscriber Notes1:1 | Fully supported | |
| Activity History (Call/Email/Meeting) | NO EQUIVALENT1:1 | Fully supported | |
| Proposal Templates | NO EQUIVALENT1:1 | Fully supported | |
| User / Owner Assignment | NO EQUIVALENT1:1 | Fully supported | |
| Attachment / File | NO EQUIVALENT1:1 | 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.
Unanet CRM by Cosential gotchas
Non-standard object names block naive field mapping
API requires Enterprise License agreement
Duplicate contact risk on bulk imports
Custom fields require manual schema enumeration
Proposal templates carry template logic, not just data
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
Audit Unanet contact and custom field inventory
FlitStack AI connects to Unanet via the Compass API (Compass v1 or v2) and exports a full contact inventory including standard fields, custom fields, labels, and notes. We generate a field audit report showing field name, type, usage frequency, and blank rate for every contact property. This report drives the merge field creation plan for Mailchimp and identifies which fields exceed Mailchimp's 40-merge-field limit and require tag-based or consolidated handling.
Set up Mailchimp audience and merge fields
Before data moves, we create the Mailchimp Audience (list) and pre-configure all required merge fields based on the audit. Standard fields (FNAME, LNAME, EMAIL, PHONE, ADDRESS) are mapped automatically. Custom Unanet fields are created as Mailchimp merge fields with appropriate types (text, number, date, drop-down). Merge fields that exceed Mailchimp's limit are surfaced for consolidation or tag conversion — you approve the plan before we proceed.
Map labels to Mailchimp tags and resolve duplicates
Unanet contact labels such as Decision Maker, Industry classification, and Priority levels map directly to Mailchimp subscriber tags applied to the corresponding subscriber records. We implement a tag-per-label strategy, normalizing tag names for Mailchimp compatibility requirements including uppercase conversion and space replacement with underscores or removal. Simultaneously, we identify and flag duplicate email addresses across all Unanet contacts — applying your chosen deduplication rule with the most-recently-modified record retained and excluded duplicates exported to a reference CSV file that includes the reason for exclusion for your review and records.
Run sample migration with field-level diff
A representative slice (typically 100–500 subscribers spanning contacts from multiple companies, with varied label sets and note lengths) migrates first via Mailchimp's bulk import API. We generate a field-level diff showing source Unanet value vs. destination Mailchimp field, flagging truncation, mapping gaps, and tag assignment. You verify the output before the full run commits. This step catches merge field misconfigurations and duplicate handling before large record volumes are processed.
Execute full migration with delta-pickup window
The full contact set migrates via Mailchimp bulk import API. A delta-pickup window (typically 24–48 hours) captures any Unanet contacts created or modified during the cutover window — ensuring Mailchimp reflects Unanet's final state at go-live. Activity history, pursuit data, and proposal references are exported as supplementary CSVs. Audit log captures every operation; one-click rollback is available if reconciliation fails.
Platform deep dives
Unanet CRM by Cosential
Source
Strengths
Weaknesses
Mailchimp
Destination
Strengths
Weaknesses
Complexity grading
Standard CRM migration. 1 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 Unanet CRM by Cosential and Mailchimp.
Object compatibility
1 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
Unanet CRM by Cosential: Not publicly documented.
Data volume sensitivity
Unanet CRM by Cosential 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 Unanet CRM by Cosential to Mailchimp migration scoping. Not seeing yours? Book a call.
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