How To Fix SADL_GEN_DRFT_MSG055 - The composition does not use consistent primary keys

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GEN_DRFT_MSG - Message for Draft generation

• Message number: 055

• Message text: The composition does not use consistent primary keys

What causes this issue?

Some CDS-Views of the composition use UUID-based keys, while others use
semantic keys.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Use one key-type consistently in your composition.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GEN_DRFT_MSG055 - The composition does not use consistent primary keys ?

  The SAP error message SADL_GEN_DRFT_MSG055 indicates that there is an inconsistency in the primary keys used in a composition. This typically occurs in the context of SAP's Semantic Data Model (SDM) or when working with the SAP ABAP programming model for SAP Fiori applications, particularly when defining or using data models that involve multiple entities.
  Cause
  The error arises when the primary keys defined for the entities in a composition do not match or are not consistent. This can happen due to several reasons:
  
  
  Mismatched Key Fields: The key fields defined in the different entities of the composition do not align. For example, if one entity uses a combination of fields as a primary key while another entity uses a single field, this inconsistency will trigger the error.
  
  
  Incorrect Data Model Definition: The data model may have been incorrectly defined, leading to inconsistencies in how the primary keys are set up across different entities.
  
  
  Changes in Data Model: If there have been recent changes to the data model (like adding or removing fields), it may lead to inconsistencies if the changes were not uniformly applied across all related entities.
  
  
  Solution
  To resolve the error, you can follow these steps:
  
  
  Review the Composition Definition: Check the definition of the composition in the data model. Ensure that all entities involved in the composition have consistent primary keys.
  
  
  Align Key Fields: Make sure that the key fields used in each entity are the same. If one entity uses a composite key, ensure that all other entities in the composition also use the same composite key.
  
  
  Update Data Model: If you find discrepancies, update the data model to ensure that all entities have consistent primary keys. This may involve modifying the entity definitions in the ABAP CDS views or the relevant data model configuration.
  
  
  Test the Changes: After making the necessary adjustments, test the composition again to ensure that the error is resolved.
  
  
  Check for Dependencies: If the composition is part of a larger model or is dependent on other components, ensure that those components are also correctly defined and do not introduce inconsistencies.
  
  
  Related Information
  
  SAP Documentation: Refer to the official SAP documentation for guidance on defining compositions and primary keys in the context of your specific SAP environment.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Debugging Tools: Use debugging tools available in the SAP environment to trace the error and understand where the inconsistency arises.
  
  By following these steps, you should be able to identify and resolve the issue causing the SADL_GEN_DRFT_MSG055 error.