**Source URL:** https://lims.veevavault.help/en/lr/1187442/

# Configuring Ad Hoc Criteria

If configured, users with the proper permissions can create *Ad Hoc Criteria* using a dedicated application section on applicable *Spec Execution* records, allowing them to create custom  specification criteria that is not associated with any design data as needed for one-off test requests.

In order to configure *Ad Hoc Criteria* for use:

1. Add the *Ad Hoc Criteria* application section to the page layout for the below *Spec Execution* object types:
    1. Batch Release Spec Execution (`batch_release__v`)
    2. Non Routine Spec Execution (`non_routine__v`)
2. Optional: If this Criteria is intended for use with a Certificate of Analysis (CoA), update the CoA Template accordingly. Create a custom formula field named **Evaluated Criteria Description** with the following formula expression:

    ```If(Not(IsBlank(criteria__v)), criteria__v, lims_criteria_description__v)```

    This field populates the *Criteria Description* from the *Ad Hoc Criteria Description* field when it is populated; otherwise, it uses the existing *Spec Data Criteria Description* field. Use this custom field as the *Criteria Description* in the CoA template.

**Note**: Ad Hoc Criteria is currently not supported for *Spec Execution* object types other than *Batch Release* and *Non-Routine*.

## Permissions

In order to use the Ad Hoc Criteria feature, users must have CREATE and DELETE permissions to the *Criteria Evaluation* object.