Message type: E = Error
Message class:  CNV_PE_CHECK - Check Framework messages for posting engine 
Message number: 039
Message text: Interface mapping for condition not present yet
An interface mapping is required if the condition transformation rule
&V1& shall be actively called (indicated with indicator on execution
rule).
No interface mapping is present.
Assign an interface mapping from worklist to transformation rule to the
execution rule.
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 CNV_PE_CHECK039 typically indicates that there is an issue with the interface mapping for a condition in the context of a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error suggests that the system is unable to find the necessary mapping for a specific condition that is required for the data transfer or transformation.
Cause: Missing Mapping: The most common cause of this error is that the interface mapping for the specified condition has not been defined or is incomplete. This can happen if the migration project has not been fully configured or if certain conditions have not been accounted for in the mapping process.
Configuration Issues: There may be configuration issues in the migration cockpit or the data migration tool being used, leading to the absence of the required mapping. Data Model Changes: If there have been changes in the data
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