How To Fix SADL_CTR_T_VIOLATION012 - RAP Contract Violation: Response with wrong Links for RBA with &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_CTR_T_VIOLATION - Contract Test Violation Messages

• Message number: 012

• Message text: RAP Contract Violation: Response with wrong Links for RBA with &1

What causes this issue?

READ BY ASSOCIATION Contract:
Entries in RESULT and LINKS should contain always the same number of
entries. Every RESULT should have its corresponding LINKS entry. LINKS
should only contain the mapping between the requested entries.

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

The contract of the following read by association operation has been
violated for &V2&\&V3&:
The behavior implementation returned LINKS which do not cover the
expected result. Each LINK entry contains a mapping between the source
and target of an association. For each requested source entry (and only
those) all target entries should be listed. So, the number of LINKS
entries should be equal to the number of entries in RESULT.

System Response

How to fix this error?

Please check the response of your behavior implementation and adopt it
according to the contract.

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_CTR_T_VIOLATION012 - RAP Contract Violation: Response with wrong Links for RBA with &1 ?

  The SAP error message SADL_CTR_T_VIOLATION012 indicates a violation related to the RAP (Rapid Application Programming) model, specifically concerning the response links for a Read-Only Business Application (RBA). This error typically arises when the response from a service does not conform to the expected structure or contains incorrect links.
  Cause:
  
  Incorrect Link Structure: The response may contain links that do not match the expected format or structure defined in the RAP model.
  Data Inconsistency: There may be inconsistencies in the data being fetched, leading to incorrect or missing links in the response.
  Model Definition Issues: The RAP model might not be correctly defined, leading to mismatches between the expected and actual response.
  Service Implementation Errors: There could be issues in the implementation of the service that generates the response, such as incorrect annotations or logic.
  
  Solution:
  
  Check Model Definitions: Review the RAP model definitions to ensure that the entity and its associations are correctly defined. Ensure that the annotations are properly set up.
  Validate Service Implementation: Inspect the implementation of the service to ensure that it correctly generates the expected response structure. Look for any discrepancies in the way links are constructed.
  Debugging: Use debugging tools to trace the execution of the service and identify where the response deviates from the expected format.
  Data Validation: Ensure that the data being fetched is consistent and adheres to the expected structure. Check for any missing or incorrect data that could lead to link violations.
  Consult Documentation: Refer to SAP documentation for RAP and SADL (Service Adaptation Definition Language) to understand the expected response structure and any specific requirements for your scenario.
  SAP Notes and Support: Check for any relevant SAP Notes that might address this specific error or provide guidance on similar issues. If necessary, reach out to SAP support for assistance.
  
  Related Information:
  
  RAP (Rapid Application Programming): A programming model in SAP that allows for the development of business applications using a set of predefined patterns and best practices.
  SADL (Service Adaptation Definition Language): A language used in SAP to define services and their adaptations, ensuring that they conform to the expected standards.
  Debugging Tools: Utilize tools like the ABAP Debugger or transaction codes like /IWFND/ERROR_LOG to analyze errors in OData services.
  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 root cause of the error and implement a solution to resolve it.