Message type: E = Error
Message class: PIC01 - Parts Interchangeability Message Class
Message number: 123
Message text: The MPN-MRP set for material & is not unique
In item &V4& of purchasing document &V3&, material &V1& should be
replaced by material &V2&. This is not possible, as no unique MPN
MRP-set has been determined for material &V1&.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
PIC01123
- The MPN-MRP set for material & is not unique ?The SAP error message PIC01123 indicates that the MPN (Manufacturer Part Number) and MRP (Material Requirements Planning) set for a specific material is not unique. This typically occurs when there are multiple entries for the same MPN in the system, which can lead to confusion in material planning and procurement processes.
Cause: Duplicate MPN Entries: The most common cause of this error is that there are multiple records in the system for the same MPN associated with the material. Incorrect Configuration: The configuration settings for MPNs and MRP might not be set up correctly, leading to conflicts. Data Migration Issues: If data was migrated from another system, it’s possible that duplicates were introduced during the migration process.
Solution: Check MPN Records: Go to the relevant transaction (e.g., MM03 for material master) and check the MPN records for the material in question. Look for duplicate entries and determine which one should be retained. Delete or Merge Duplicates: If duplicates
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