How To Fix WTADDI443 - Additional &1 is not assigned to external additional &2

WTADDI443 - Overview

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 443

• Message text: Additional &1 is not assigned to external additional &2

What causes this issue?

The <DS:GLOS.3526BC3AAFAB52B9E10000009B38F974>procedure</> for an
<DS:GLOS.3526BC88AFAB52B9E10000009B38F974>additional</> can be assigned
externally by a customer. The external method must then be converted
into an internal method. External method &V2& and internal method &V1&
are not assigned to one another for customer &V3&.

System Response

INCLUDE ISR_VERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

Check your entry.
You can <DS:TRAN.WTAD_FMCU_CHANGE>maintain</> or
<DS:TRAN.WTAD_FMCU_DISP>display</> the assignment of external or
internal procedures for additionals here.

Error message extract from SAP system. Copyright SAP SE.

WTADDI443 - Details

• SAP Error Message:
  WTADDI443 - Additional &1 is not assigned to external additional &2
  
  Meaning / 
  Cause:
  This error occurs in SAP Treasury and Risk Management (TRM), specifically in the context of derivatives and risk management when working with additional fields (also called additional attributes or additional data fields).
  
  The message indicates that an internal additional field (represented by &1) is not assigned or linked to the corresponding external additional field (represented by &2).
  In SAP TRM, additional fields are used to extend standard data structures with custom fields.
  For integration or data transfer purposes, internal additional fields must be mapped or assigned to external additional fields.
  If this assignment is missing or incorrect, the system cannot process the data correctly, leading to this error.
  
  
  When does it occur?
  
  During data transfer or processing involving additional fields in TRM.
  When creating or updating derivatives, risk positions, or other TRM objects that use additional fields.
  During interface processing or data exchange between