Message type: E = Error
Message class:  RSO_RES_CONVMSGS - Messages directly related to the conversion types 
Message number: 031
Message text: Key date derivation type &1 is consistent.
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The SAP error message RSO_RES_CONVMSGS031 indicates that there is an issue with the key date derivation type in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This error typically arises when there is a mismatch or inconsistency in the configuration of the key date derivation type for a particular InfoObject or data source.
Cause: The error message suggests that the key date derivation type specified (denoted by &1) is consistent, but it may not be correctly configured or aligned with the expectations of the data model or the data extraction process. Common causes include: Incorrect Configuration: The key date derivation type may not be set up correctly in the InfoObject or data source settings. Incompatibility: The key date derivation type may not be compatible with the data being processed or the specific requirements of the InfoProvider. Data Model Issues: There may be issues in the data model that prevent the key
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