Message type: E = Error
Message class:  FINLOC_JP_MYNUMBER - Japan MY Number Extension 
Message number: 013
Message text: Authorized user pressed UNMASK but the retention error returned
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The SAP error message FINLOC_JP_MYNUMBER013 typically relates to issues with the My Number system in Japan, which is a unique identification number system for residents. The specific error message indicates that an authorized user attempted to unmask (reveal) sensitive information, but a retention error occurred.
Cause: Retention Policy Violation: The error may arise if the system's retention policy for sensitive data (like My Number) has not been adhered to. This could mean that the data is no longer available for unmasking due to retention rules. User Authorization Issues: Even though the user is authorized, there may be additional checks or configurations that prevent unmasking due to compliance or data protection regulations. System Configuration: There may be a misconfiguration in the SAP system regarding how sensitive data is handled, particularly in relation to the My Number system.
Solution: Check Retention Settings: Review the retention settings in the SAP system to ensure that they align with legal requirements
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