How To Fix UCS0108 - No role is assigned to surrogate key &1 for characteristic &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 108

• Message text: No role is assigned to surrogate key &1 for characteristic &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UCS0108 - No role is assigned to surrogate key &1 for characteristic &2 ?

  The SAP error message UCS0108 indicates that there is no role assigned to a surrogate key for a specific characteristic in the context of SAP BW (Business Warehouse) or SAP HANA. This error typically arises when you are trying to perform operations that require a valid role assignment for a characteristic, but the system cannot find one.
  Cause:
  
  Missing Role Assignment: The surrogate key for the characteristic does not have an associated role defined in the system.
  Configuration Issues: There may be issues in the configuration of the InfoObject or the data model that prevent the proper assignment of roles.
  Data Model Changes: If there have been recent changes to the data model or InfoObjects, it may lead to inconsistencies that result in this error.
  Transport Issues: If the InfoObject or its roles were transported from one system to another, the transport might not have included all necessary components.
  
  Solution:
  
  
  Check Role Assignment:
  
  Go to the InfoObject maintenance transaction (e.g., RSA1) and check the characteristic for which the error is being raised.
  Ensure that the surrogate key has a role assigned. You can do this by navigating to the "Roles" tab in the InfoObject maintenance screen.
  
  
  
  Assign a Role:
  
  If no role is assigned, you can create a new role or assign an existing role to the surrogate key. Make sure that the role is appropriate for the data being processed.
  
  
  
  Review Data Model:
  
  Check the data model for any inconsistencies or errors. Ensure that all necessary InfoObjects and their relationships are correctly defined.
  
  
  
  Transport Check:
  
  If the issue arose after a transport, verify that all necessary objects were included in the transport request. You may need to re-transport the missing components.
  
  
  
  Re-activate InfoObjects:
  
  Sometimes, re-activating the InfoObject can resolve issues related to role assignments. You can do this in the InfoObject maintenance transaction.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of SAP BW or HANA you are using, as there may be version-specific considerations or patches available.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for UCS0108 in the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) and RSD1 (InfoObject Maintenance) for troubleshooting.
  
  By following these steps, you should be able to identify the cause of the UCS0108 error and implement a solution to resolve it.