How To Fix E1129 - Process code (inbound) exists

E1129 - Overview

• Message type: E = Error

• Message class: E1 - Messages for IDoc Basis

• Message number: 129

• Message text: Process code (inbound) exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message E1129 - Process code (inbound) exists ?

  The SAP error message E1129, which states "Process code (inbound) exists," typically occurs in the context of inbound processing, particularly when dealing with IDocs (Intermediate Documents) or other forms of data exchange in SAP systems. This error indicates that there is a conflict or issue with the process code that is being used for inbound processing.
  
  Cause:
  
  Duplicate Process Code: The error often arises when there is a duplicate process code defined in the system. This can happen if multiple configurations or settings are trying to use the same process code for inbound processing.
  Incorrect Configuration: The process code may not be correctly configured in the system, leading to conflicts when trying to process inbound messages.
  Missing or Incorrect Partner Profile: The partner profile (WE20) may not be set up correctly, or the process code may not be assigned properly to the relevant message type or partner.
  IDoc Type Issues: The IDoc type being used