How to restrict the user to enter the item in purchase order?

I want to restrict user to enter the item in purchase order.
How can i do this?
Please help
Abhishek

Hi,
   You may create a transaction variant for ME21N in SHD0 transaction. Make the item field as output only as shown below:
Result:
   You may check the doc: Learning SHD0 with Example
Regards,
AKPT

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