Hi Guru,
To resolve this you will have to config : Set POD - Relevance Depending on Delivery Item Category
Follow the path IMG -----> Logistics Execution -----> Shipping -------> Delivery ------> Proof of Delivery
-----> Set POD - Relevance Depending on Delivery Item Category
Under POD relevance --- TAN Item Category maintain X as relevant for POD, under POD relevant column.
Then save the document.
Regards,
Sudeep