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

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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 modules or BAPIs.
  During transport or import of BOR objects if the event is locked or inconsistent.
  
  
  Solution / How to fix:
  
  
  Check Lock Status:
  
  Verify if the business object or event is locked by another user or process.
  Use transaction SM12 to check for locks on the object or event.
  If locked, wait for the lock to be released or contact the user holding the lock.
  
  
  
  Check Authorizations:
  
  Ensure the user has the necessary authorizations to modify BOR objects and events.
  Authorizations related to BOR are usually in the area of object type S_BOR and activity 02 (change).
  
  
  
  Check Event Status:
  
  Some events are standard and cannot be modified.
  Verify if the event is a standard SAP event or a custom event.
  If standard, consider creating a new custom event instead of modifying the existing one.
  
  
  
  Check Transport and System Consistency:
  
  If the error occurs during transport, check if the transport request is released and imported correctly.
  Use transaction SE03 or SE09/SE10 to check transport logs.
  Re-import or re-transport the object if necessary.
  
  
  
  Check Business Object Repository (BOR) Consistency:
  
  Run consistency checks on BOR using transaction SWO1 or SWO2.
  If inconsistencies are found, consider re-importing the BOR object or correcting the inconsistencies.
  
  
  
  Debug / Analyze:
  
  If the error occurs during runtime, debug the program to see why the modification is failing.
  Check the function modules or BAPIs used to modify the event.
  
  
  
  
  Related Information:
  
  Transaction SWO1: Business Object Builder — used to display and modify business objects and their events.
  Transaction SM12: Lock entries — to check for locks.
  Authorization Object: S_BOR — controls access to BOR objects.
  BOR (Business Object Repository): Central repository for business objects and their events.
  SAP Notes and OSS messages related to BOR and event modifications may provide additional fixes or patches.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WA155: Event &2 of business object type &1 could not be modified
  
  
  Cause
  Event locked, insufficient authorization, standard event not modifiable, BOR inconsistency
  
  
  Solution
  Check locks (SM12), check authorizations, verify event type, check transport, BOR consistency
  
  
  Tools
  SWO1, SM12, SE03, SE09/SE10, SWO2
  
  
  
  
  If you provide the exact business object type and event name, or the context in which the error occurs, I can help with more specific guidance.