set the check box GOITEM-XSAUT as not editable (greyed) by creating a dedicated userexit

[former_member4193]

Please help! I have an urgent requirement to set the checkbox GOITEM-XSAUT (create serial numbers automatically) as not editable or greyed out. I am new to ABAP. Please provide step by step process on how to do this by creating dedicated user exit.

The highlighted in yellow is the checkbox (GOITEM-XSAUT) that needs to be greyed out in transaction MIGO:

Thank you