Message type: E = Error
Message class: PMRP - Messages for pMRP
Message number: 004
Message text: Reference ID &1 already exists and cannot be created
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PMRP004
- Reference ID &1 already exists and cannot be created ?The SAP error message PMRP004 indicates that a reference ID (in this case, &1) already exists in the system and cannot be created again. This error typically occurs in the context of creating or managing maintenance plans, task lists, or other objects in the Plant Maintenance (PM) module.
Cause: Duplicate Entry: The most common cause of this error is an attempt to create a new object (like a maintenance plan or task list) with a reference ID that is already in use or has been created previously. Data Integrity Issues: There may be issues with data integrity where the system believes that the reference ID is still active or valid.
Configuration Issues: Sometimes, configuration settings in the system may lead to conflicts or mismanagement of reference IDs.
Solution: Check Existing Entries: Use transaction codes like IP03 (Display Maintenance Plan) or IA03 (Display Task List) to check if the reference ID already exists in the system. If it
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