Cannot get pay period start date for contingent worker

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University of Pittsburgh Medical Center - Approved Case #3

I have configured an autocomplete rule to prevent a user from entering a termination date prior to the pay period start date but this does not work for contingent workers. The pay period start date comes over with null value for contingent workers and thus, get error with object function 'Convert_String_to_Date'. The rule is working as expected for all other terminations (regular employee, etc.) but does not for contingent workers.