How To Fix WTADDI446 - Procedure for additionals &1 not defined for this sales order

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 446

• Message text: Procedure for additionals &1 not defined for this sales order

What causes this issue?

Procedure for additional &V1& is invalid because of the parameters for
this sales order.

System Response

You cannot leave the screen with the additional maintenance until a
valid procedure for additionals has been entered.

How to fix this error?

Check your entries and if necessary, the Customizing settings for the
<DS:SIMG.W_DF_LT_0201.SIMG_LAB>procedure for additionals</>.

Error message extract from SAP system. Copyright SAP SE.