How To Fix STEP121 - Event &1 is not defined in schema &2

SAP Error Message - Details

• Message type: E = Error

• Message class: STEP - ISO 10303 STEP Mapping Messages

• Message number: 121

• Message text: Event &1 is not defined in schema &2

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 STEP121 - Event &1 is not defined in schema &2 ?

  The SAP error message "STEP121 Event &1 is not defined in schema &2" typically occurs in the context of workflow or process management within SAP systems. This error indicates that a specific event (denoted by &1) is being referenced in a workflow schema (denoted by &2), but that event has not been defined in the schema.
  Cause:
  
  Missing Event Definition: The event that is being triggered or referenced in the workflow is not defined in the specified schema.
  Incorrect Schema Reference: The schema being referenced may not be the correct one, or it may not have been activated properly.
  Changes in Workflow: If changes were made to the workflow or schema, it is possible that the event was removed or not properly updated.
  Transport Issues: If the schema was transported from one system to another, the event definition may not have been included in the transport.
  
  Solution:
  
  
  Check Event Definition:
  
  Go to the workflow schema in transaction code SWDD (Workflow Builder) or SWETYPV (Event Type Maintenance).
  Verify if the event &1 is defined in the schema &2. If it is not, you will need to create or define the event.
  
  
  
  Activate the Schema:
  
  If the event is defined but the error persists, ensure that the schema is activated. You can do this in the Workflow Builder.
  
  
  
  Review Workflow Configuration:
  
  Check the workflow configuration to ensure that all events and steps are correctly defined and linked.
  If you have made recent changes, consider reverting to a previous version of the workflow to see if the error resolves.
  
  
  
  Transport Check:
  
  If the schema was transported, ensure that all necessary objects, including events, were included in the transport request.
  You may need to re-transport the missing objects.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of SAP you are using, as there may be known issues or additional steps required.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can trace the workflow execution to identify where the error is occurring and gather more context.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SWDD: Workflow Builder
  SWETYPV: Event Type Maintenance
  SWI1: Work Item Selection
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to your specific version of SAP.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.