CRM migration
Field-level mapping, validation, and rollback between Unim and HighLevel. We move data and schema; workflows are rebuilt natively in HighLevel.
Unim
Source
HighLevel
Destination
Compatibility
5 of 8
objects map 1:1 between Unim and HighLevel.
Complexity
CModerate
Timeline
2-4 weeks
Overview
Moving from Unim to GoHighLevel means transitioning from a handcrafted per-buyer application to a platform with a standardized object model. Every Unim instance has a unique schema built to the customer's specification—no two tenants share the same field landscape, custom object types, or entity relationships. We begin every Unim migration by introspecting the live custom-fields API endpoint, resolving DataType IDs and ModelID references for every active field, and cataloguing any bespoke object definitions before writing a single record. GoHighLevel is contact-centric: all records radiate from a flat Contact, Companies are loose groupings, and Deals live inside Pipelines with configurable stages. We resolve the relationship between Unim's Company and Contact entities into GoHighLevel's Contact and Company model, preserve Activity history (calls, emails, notes) with timestamps intact, and configure GoHighLevel pipeline stages to match the stages defined in Unim. Workflows, automations, and webhook configurations built inside Unim's application builder do not migrate; we document them for the customer's admin to rebuild in GoHighLevel's Automation menu.
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 Unim object lands in HighLevel, including any object-level transformations, lookup resolution, or schema-design dependencies.
Typical mapping — final map is confirmed during the sample migration step.
Unim
Contact
HighLevel
Contact
1:1Unim Contact records map to GoHighLevel Contact. Every Unim deployment has a different Contact schema built from a base ModelID plus active custom fields. We discover the live Contact field set via the custom-fields API endpoint before migration, resolve DataType IDs for any custom fields via the valuelists endpoint, and map each to a GoHighLevel standard field or custom field created in the destination sub-account before import. Email address is the dedupe key for Contact inserts.
Unim
Company
HighLevel
Company
1:1Unim Company records map to GoHighLevel Company. The Company entity follows the same discovery pattern as Contact—ModelID plus active custom fields are introspected before migration. We create matching custom fields in GoHighLevel's Company object, then import Company records before Contact import so that the Contact-to-Company linkage is satisfied at insert time. Domain or company name is the dedupe key.
Unim
Contact-Company Linkage
HighLevel
Contact-Company Relationship
lossyUnim's Company-to-Contact linkage model varies per application. We discover whether Contacts link to Companies via a foreign-key field, a join table, or embedded object references. In GoHighLevel, Contacts optionally associate with a Company record via the company_name or company_id field. We configure this linkage during discovery and preserve the relationship during import by resolving the destination Company ID before Contact insert.
Unim
Activity (Call, Email, Meeting, Note)
HighLevel
Task, Event, Note
1:1Unim Activity records carry timestamps, owner references, and optionally linked custom fields. We map call Activities to GoHighLevel Task with call-related metadata in custom fields; email Activities map to GoHighLevel Task with a body field carrying the message content; meeting Activities map to GoHighLevel Event with start/end timestamps; notes map to GoHighLevel Note. Activity-to-Contact or Activity-to-Company linkage is preserved via the destination record ID resolved at migration time.
Unim
Custom Fields (standard objects)
HighLevel
Custom Fields (Contact, Company, Opportunity)
lossyUnim's custom-fields API exposes every custom field defined on the standard objects with a Name, ModelID, DataType, and Nullable flag. DataTypes require a separate valuelists API call to resolve the lookup ID. We create matching custom fields in GoHighLevel for each discovered custom field before importing any records. Multi-select, date, number, and text datatypes map directly to GoHighLevel equivalent field types. This step is mandatory before any record import.
Unim
Custom Objects (bespoke entities)
HighLevel
Custom Objects or Opportunities
1:1Bespoke object types defined at the Unim application level are discovered via schema introspection. We evaluate each custom object independently: if it resembles a Deal or Project structure (with amount, stage, close date), we map it to GoHighLevel Opportunity within a Pipeline. If it is a distinct entity type not represented in GoHighLevel's standard model, we create a Custom Object in GoHighLevel and map its fields accordingly. Lookup relationships between custom objects and standard objects require parent-record resolution before child record insert.
Unim
Owner/User
HighLevel
User
1:1Owner IDs in Unim are scoped to that specific deployment and are not portable to GoHighLevel. We extract every distinct owner referenced on Contacts, Companies, Activities, and custom objects, and match by email address against the GoHighLevel destination Users. Any owner with no matching GoHighLevel User is placed in a reconciliation queue for the customer to provision before import resumes. Unresolved owner references are set to the GoHighLevel migration service user with a note for manual reassignment.
Unim
Tag/Label
HighLevel
Tag or Custom Field (multi-select)
lossyTag associations in Unim are stored either as linked records or as array fields depending on the specific deployment. We preserve tag-to-record linkages as a join table exported to a GoHighLevel custom field (multi-select picklist) or as Tags in GoHighLevel depending on the customer's preference. Tag strategy is confirmed during the discovery phase.
| Unim | HighLevel | Compatibility | |
|---|---|---|---|
| Contact | Contact1:1 | Fully supported | |
| Company | Company1:1 | Fully supported | |
| Contact-Company Linkage | Contact-Company Relationshiplossy | Fully supported | |
| Activity (Call, Email, Meeting, Note) | Task, Event, Note1:1 | Fully supported | |
| Custom Fields (standard objects) | Custom Fields (Contact, Company, Opportunity)lossy | Fully supported | |
| Custom Objects (bespoke entities) | Custom Objects or Opportunities1:1 | Fully supported | |
| Owner/User | User1:1 | Fully supported | |
| Tag/Label | Tag or Custom Field (multi-select)lossy | 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.
Unim gotchas
Every Unim instance has a unique custom field schema
Custom field datatypes require a separate lookup call
No public API documentation for the core business objects
File attachment extraction requires a separate Files API call
Owner/user IDs are instance-scoped and not portable
HighLevel gotchas
Sub-account architecture creates isolated data silos per client
Usage-based telecom and AI costs are not in the subscription price
Workflows have no native equivalent in most destination CRMs
API rate limits cap bulk migration throughput at 100 requests per 10 seconds per sub-account
White-label configuration and branding assets do not export via API
Pair-specific challenges
Migration approach
Schema discovery and field cataloguing
We run live introspection against the Unim custom-fields API endpoint to enumerate every active custom field on Contact, Company, and any discovered custom objects. For each field, we resolve the DataType ID via the valuelists endpoint and record the field name, datatype, nullable flag, and ModelID. We also query the entity definitions to identify any bespoke object types beyond the standard triad. The output is a written schema map specific to this Unim deployment, confirming which fields will migrate and which will require manual note or exclusion.
Destination schema provisioning in GoHighLevel
We create custom fields in the GoHighLevel destination sub-account for every discovered Unim custom field before importing any records. Multi-select, date, number, text, and phone datatypes map to GoHighLevel equivalent field types. We also configure Pipeline stages in GoHighLevel to match the stage values defined in Unim, creating a GoHighLevel Pipeline that mirrors the Unim deal-flow model. Owner email mappings are confirmed against GoHighLevel Users. The destination schema is validated in a staging pass before production import begins.
Owner reconciliation and User provisioning
We extract every distinct owner referenced on Contacts, Companies, Activities, and custom objects and match by email against the GoHighLevel destination Users. Any owner with no matching GoHighLevel User is placed in a reconciliation queue. The customer provisions any missing Users before migration resumes. Migration cannot proceed past this step because GoHighLevel requires a valid OwnerId on all imported records.
Record migration in dependency order
We import records in dependency order: Companies first (for the Company-to-Contact linkage), then Contacts with the resolved Company reference, then Activities (Tasks, Events, Notes) linked to the migrated Contacts, then any custom object records, and finally Opportunities inside the configured Pipeline. Each phase emits a row-count reconciliation report before the next phase begins. File attachments are extracted separately via the Files API and re-associated with target records in GoHighLevel.
Cutover, validation, and automation handoff
We freeze writes to Unim during cutover, run a final delta migration of any records modified during the migration window, then validate a random sample of migrated records against the source Unim data. We deliver the automation and webhook inventory document to the customer's admin. We do not rebuild Unim workflows in GoHighLevel as part of the migration scope; that is a separate engagement handled by the customer's admin or a GoHighLevel implementation partner.
Platform deep dives
Unim
Source
Strengths
Weaknesses
HighLevel
Destination
Strengths
Weaknesses
Complexity grading
Moderate CRM migration. 4 of 8 objects need a mapping; the rest are 1:1.
Overall complexity
Moderate migration
Derived from compatibility, mapping clarity, API constraints, and data volume across Unim and HighLevel.
Object compatibility
4 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
Unim: Not publicly documented — confirmed during integration scoping..
Data volume sensitivity
Unim 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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