How To Fix WTADDI444 - External additional &1 is not assigned to any internal

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 444

• Message text: External additional &1 is not assigned to any internal

What causes this issue?

You have entered external
<DS:GLOS.3526BC3AAFAB52B9E10000009B38F974>procedure for additionals</>
&V1&. This method must be converted into a procedure for additionals
that is valid for your system.
The relevant values must exist in the system to do this. No entry has
been maintained for customer&V4& in distribution chain&V2&&V3&.

System Response

The system cannot convert the external procedure for additionals.
Further processing is not possible.

How to fix this error?

Check your entry. If necessary, maintain the
<DS:TRAN.WTAD_FMCU_CHANGE>procedure for additional assignment for this
customer</>.

Error message extract from SAP system. Copyright SAP SE.