As per our requirement, I have done below steps to add field on Entity.
Adding the field with drag and drop from the Custtable in Staging table
Then adding the field (Drag & Drop from CustTable) on Data entity.
Then do the rebuild the entire project.
Then do the DB Sync
and Finally do the "Entity refresh list".
After these all above process, when I went to the Data managementity and clicked on Modify target mapping, then unable to get the field which I have added like PaymMode.
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