How To Fix WTADDI251 - IDoc cannot be generated by calling BAPI

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 251

• Message text: IDoc cannot be generated by calling BAPI

What causes this issue?

You want additionals IDoc generation to be triggered by a BAPI. This
<DS:DE.ADDI_OPER>follow-up action</> is not defined for
<DS:DE.ADDI_BELNR>additionals document</> &V1&, <DS:DE.ADDI_POSNR>item
</> &V2&, <DS:DE.ADDI_STUNR>schedule line</> V3& and
<DS:DE.ADDI_WTKEY>additional</> &V4&.

System Response

No additionals IDoc is generated.

How to fix this error?

INCLUDE ISR_CHECK
You can display detailed data for this document in the additionals
monitor.

Error message extract from SAP system. Copyright SAP SE.