Issue
User would like to change or add a unique combination of fields to an existing uniqueness constraint but only have the option to delete the constraint.
Environment
Registry
Resolution steps
While the unique constraint UI limits you to a single constraint, that constraint can be defined across several fields. Once a unique constraint has been set it becomes read only and must be deleted in order to add a different combination of fields. Introducing a new constraint will initiate a validation process for all existing entities. This may require a considerable amount of time, particularly if the entity count is high. If you run into errors or delays please reach out to Benchling Support.