Message type: E = Error
Message class: /SAPAPO/RET_MESSAGES -
Message number: 136
Message text: The time unit must be shift to be able to maintain reference shifts
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/SAPAPO/RET_MESSAGES136
- The time unit must be shift to be able to maintain reference shifts ?The SAP error message /SAPAPO/RET_MESSAGES136 indicates that there is an issue with the time unit configuration in the SAP Advanced Planning and Optimization (APO) system, specifically related to maintaining reference shifts. This error typically arises when the time unit set for a planning object does not allow for the necessary shifts to be defined or adjusted.
Cause: Incompatible Time Unit: The time unit defined for the planning object (e.g., days, hours) may not support the concept of shifts. For example, if the time unit is set to days, it may not allow for the definition of shifts that are typically measured in hours.
Configuration Issues: There may be a misconfiguration in the planning area or the master data that prevents the system from recognizing the shifts correctly. Reference Shift Settings: The reference shifts may not be properly defined or may conflict with the current time unit settings.
Solution: Check Time Unit Configuration: Navigate to the relevant planning
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