How To Fix SD_CDS_ENTITY102 - Base object &1 of type &2 is not allowed for view entities

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_CDS_ENTITY - Messages for STOBS/entities

• Message number: 102

• Message text: Base object &1 of type &2 is not allowed for view entities

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_ENTITY102 - Base object &1 of type &2 is not allowed for view entities ?

  The SAP error message SD_CDS_ENTITY102 indicates that there is an issue with the base object being used in a Core Data Services (CDS) view. Specifically, the error states that the base object of a certain type is not allowed for view entities. This typically occurs when the CDS view is trying to reference a base object that is not compatible or not permitted for use in that context.
  Cause
  The error can arise due to several reasons:
  
  Incompatible Object Type: The base object you are trying to use in the CDS view may not be a valid entity type for that view. For example, certain types of database tables or structures may not be allowed.
  Incorrect Annotations: The annotations in the CDS view definition may not be correctly set, leading to the system rejecting the base object.
  View Entity Restrictions: Some base objects may have restrictions on their usage in view entities due to their nature (e.g., they may not support certain operations or may not be designed for use in a CDS view).
  Transport Issues: If the CDS view was transported from another system, there may be inconsistencies or missing objects in the target system.
  
  Solution
  To resolve the SD_CDS_ENTITY102 error, you can take the following steps:
  
  
  Check Base Object Type: Verify that the base object you are using is indeed allowed for the CDS view. Refer to the SAP documentation for the specific types of objects that can be used in CDS views.
  
  
  Review Annotations: Ensure that the annotations in your CDS view definition are correctly specified. Pay attention to any required annotations that may dictate the usage of certain base objects.
  
  
  Use Valid Base Objects: If the base object is not allowed, consider using a different base object that is compatible with the CDS view. You may need to create a new view or modify the existing one to use a valid base object.
  
  
  Check for Transport Issues: If the CDS view was transported, ensure that all dependent objects are also transported and available in the target system. You may need to re-transport or adjust the objects accordingly.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates regarding this error message.
  
  
  Debugging: If you have access to the ABAP development environment, you can debug the CDS view to see where the error is being triggered and gather more context about the issue.
  
  
  Related Information
  
  CDS Views: Core Data Services (CDS) is a framework for defining semantically rich data models in SAP. Understanding how CDS views work and their limitations is crucial for effective development.
  SAP Documentation: Refer to the official SAP Help Portal for detailed information on CDS views, including guidelines on base objects and annotations.
  SAP Community: Engage with the SAP Community forums to seek advice from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the SD_CDS_ENTITY102 error and implement a suitable solution.