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Field Validation Unique with 1 exception


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I am trying to setup a field where each value is unique except for one instance.

Example A number field where each record would have a unique entry except when entering the number 10 which could have multiple records.

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You could set up another field with auto-entered calculation (replacing existing value) =

Case ( Numberfield ≠ 10 ; Numberfield )

and validate for unique values in the new field.

However:

1. Validation will occur only when the record is committed;

2. The very need for this suggest there's something wrong with your data structure.

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This topic is 5742 days old. Please don't post here. Open a new topic instead.

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