How To Fix M!129 - &1: &2-&3 are updated only be event &4

M!129 - Overview

• Message type: E = Error

• Message class: M! -

• Message number: 129

• Message text: &1: &2-&3 are updated only be event &4

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 M!129 - &1: &2-&3 are updated only be event &4 ?

  The SAP error message M!129 indicates that a certain material document or inventory management transaction is being updated incorrectly. The message typically states that the specified fields (represented by &1, &2, and &3) can only be updated by a specific event (represented by &4). This error often arises in the context of inventory management or material movements.
  
  Cause:
  The error usually occurs due to one of the following reasons:
  
  Incorrect Update Attempt: You are trying to update fields in a material document that are restricted to be modified only through specific events (like goods receipt, goods issue, etc.).
  Event-Driven Updates: The system is designed to ensure data integrity by allowing certain fields to be updated only through specific events. Attempting to change these fields through other means (like direct database updates or incorrect transaction codes) will trigger this error.
  
  Configuration Issues: There may be configuration settings in the SAP system that restrict updates to certain