Message type: E = Error
Message class:  MMRP01 - Rapid Planning Matrix 
Message number: 238
Message text: Component variant of a phantom assembly must be unique
You tried to add a component with a component variant at node &V2& of
order &V1& for which a phantom assembly aready exists.
The system cannot firm the node.
Enter another valid component variant of the node instead.
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.
The SAP error message MMRP01238 indicates that there is an issue with the component variant of a phantom assembly in the system. Specifically, it means that the component variant you are trying to use is not unique, which is a requirement for phantom assemblies in SAP.
Cause: Duplicate Component Variants: The error typically arises when there are multiple entries for the same component variant associated with a phantom assembly in the Bill of Materials (BOM). Phantom assemblies are used in production to simplify the BOM structure, and each component variant must be unique to avoid confusion in production planning and execution. Incorrect BOM Configuration: The BOM may not be configured correctly, leading to multiple entries for the same component variant. Data Entry Errors: Manual data entry errors can lead to duplicate entries in the BOM.
Solution: Check BOM Entries: Review the BOM for the phantom assembly in question. Look for duplicate component variants and ensure that
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