Getting Started & General
How to Use Unique Fields in GoHighLevel Custom Objects
By Marnix Geerkens. Published 2026-01-22. Updated 2026-06-02.
Unique fields in GoHighLevel custom objects prevent duplicate records by enforcing that no two records share the same value for a designated field. When creating a custom object or adding a custom field to one, mark the field as unique, and GoHighLevel will reject any attempt to save a second record with an identical value in that field.
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Summary. GoHighLevel custom objects support up to ten unique fields per object, making them well suited for identifiers like VIN numbers, transaction IDs, customer account numbers, or property addresses. The unique constraint is set at the point of field creation by checking a checkbox. Once a field is marked non-unique, it cannot be upgraded back to unique, so the decision is worth making carefully upfront. Duplicate-entry errors fire immediately when a conflicting record is submitted.
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Frequently asked questions
How many unique fields can one custom object have?
A maximum of ten unique fields per custom object.
Can I make an existing field unique after it is created?
No, a field marked non-unique cannot later be changed to unique.
What happens if I try to save a duplicate unique value?
GoHighLevel throws an error and blocks the record from being created.