Message type: E = Error
Message class: MCEX - Extraction Interface LIS/BW
Message number: 004
Message text: Communication structure &1 is used in extraction structure &2
Individual fields in the communication structure are already contained
in the extract structure. You cannot therefore not delete the
communication structure from the selection.
If you want to delete the communication structure, go into the
structure maintenance of the relevant extract structure.
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.
MCEX004
- Communication structure &1 is used in extraction structure &2 ?The SAP error message MCEX004 indicates that there is a conflict in the extraction structures being used in the data extraction process. Specifically, it means that a communication structure (denoted as &1) is being used in an extraction structure (denoted as &2), which is not allowed in the context of the operation you are trying to perform.
Cause: Incorrect Configuration: The communication structure is likely being referenced incorrectly in the extraction structure. Data Model Issues: There may be inconsistencies in the data model or the way the extraction structures are defined. Version Mismatch: If there are different versions of the extraction structures or communication structures, this could lead to conflicts. Custom Modifications: If there have been custom modifications to the standard extraction structures or communication structures, this could lead to unexpected behavior.
Solution: Check Configuration: Review the configuration of the extraction structure and the communication structure. Ensure that they are set up correctly and that the communication
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