In TDM Portal, using HASHDOB () function for all DOB fields(VARCHAR type) for masking didn't mask the data. The data field has remained unchanged.
Release : 4.9
Component : CA Test Data Manager
Didn't specifying the Date format in HASHDOB() caused the issue.
Specifying the Specific Date format based on the DB in the HashDOB()-->Extra options resolved the issue.
https://techdocs.broadcom.com/us/en/ca-enterprise-software/devops/test-data-management/4-9/reference/masking-functions-and-parameters.html