HCM Extract Document of records system document type attribute is not working

Hi All,

Below is the requirement:

1. Based on the action_code system document type should show the document type accordingly. Example: If action_code is change_salary then system document type should show as GLB_Change_Salary.

To achieve this requirement we have created a custom document type under HR document types "GLB_PWC_CHG_HIST".

In HCM extract if we give "GLB_PWC_CHG_HIST" for system document type, document is successfully delivering to the person.

How ever to achieve dynamic system document type based on action code i tried to use a fast formula. Created an attribute system document type in hcm extract and attached a fast formula. In fast formula i just hardcoded the same value.