Message type: E = Error
Message class:  TAN_MDCRS - Message class for Market Data Change Rate Set 
Message number: 016
Message text: MDCR values maintained. Deletion not allowed.
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The SAP error message TAN_MDCRS016 indicates that there are maintained MDCR (Master Data Change Request) values in the system, and as a result, deletion of the related data is not allowed. This typically occurs in the context of managing master data, such as asset master records, where certain dependencies or configurations prevent deletion.
Cause: Existing Dependencies: The asset or master data you are trying to delete has associated MDCR values that are still active or in use. Configuration Settings: The system may be configured to prevent deletion of records that have related change requests or dependencies. Data Integrity: SAP enforces data integrity rules to ensure that related data is not lost or corrupted by allowing deletions.
Solution: Review MDCR Values: Check the MDCR values associated with the asset or master data you are trying to delete. You can do this by navigating to the relevant transaction or using reports that display MDCR information. Delete or Archive MDCR
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