Message type: E = Error
Message class:  KU - Costing: Rollup 
Message number: 104
Message text: In CO area & there are no nodes for hierarchy & &
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The SAP error message KU104 typically indicates that there is an issue with the cost center hierarchy in the Controlling (CO) area. The message states that there are no nodes for the hierarchy, which means that the system cannot find the necessary hierarchy structure to process the transaction you are attempting.
Cause: Missing Hierarchy: The cost center hierarchy may not be defined or activated in the system. Incorrect Configuration: The configuration settings for the cost center hierarchy might be incorrect or incomplete. Data Issues: There may be missing or incorrect data in the master records for cost centers or the hierarchy itself. Authorization Issues: The user may not have the necessary authorizations to access the hierarchy.
Solution: Check Hierarchy Configuration: Go to the transaction code OKA1 (Maintain Cost Center Hierarchy) and verify if the hierarchy is defined and active. Ensure that the hierarchy nodes are correctly set up and that there are no missing nodes. Create or Activate Hierarchy: If the
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