How To Fix WA155 - Event &2 of business object type &1 could not be modified

SAP Error Message - Details

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 155

• Message text: Event &2 of business object type &1 could not be modified

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WA155 - Event &2 of business object type &1 could not be modified ?

  The SAP error message:
  WA155: Event &2 of business object type &1 could not be modified
  
  Meaning / 
  Cause:
  This error occurs when an attempt is made to modify an event of a business object type, but the system does not allow the modification. Typically, this happens because:
  
  The event is locked or currently being processed.
  The event is not modifiable due to system restrictions or because it is a standard event that should not be changed.
  The user does not have the necessary authorizations to modify the event.
  The event is part of a business object that is currently in a state that prevents changes (e.g., in a locked or released status).
  There might be inconsistencies or issues in the Business Object Repository (BOR) or the event definition.
  
  
  When does it occur?
  
  When you try to change or delete an event in transaction SWO1 (Business Object Builder).
  When a program or user tries to modify an event dynamically via function