Cannot select blocked specification 10s when adding a firm

This section provides information on a validation error.

Workflow Table Type Description Workflow Conditions
Firm Insert Blocked Specification 10 cannot be selected (Add)
Action Column (Field) Change Properties Description Action Conditions
Column (Field) Change Column: Workflow Blocked Specification 10 

New Value SQL Expression:

If this is True: (select custBlocked from UDIC_Specification10 where UDIC_UID='[:ClientCustomTabFields.CustSpecification10Dimension]')='[BLOCKED]'

Use this Calculation: 'Y'

Otherwise, Use This Calculation: 'N'

Test if blocked Specification 10 was selected Specification 10 Dimension  not empty 
Validate Error You've chosen a blocked Specification 10. Please select a different Specification 10. Workflow Blocked Specification 10 equals Yes