How To Fix RAP_BO_CTR_TEST_DEMO001 - FUNCTION_DUPL_EXISTING_KEY

SAP Error Message - Details

• Message type: E = Error

• Message class: RAP_BO_CTR_TEST_DEMO - Demo Message class for RAP BO Contract tests

• Message number: 001

• Message text: FUNCTION_DUPL_EXISTING_KEY

What causes this issue?

The test executes a function on each entity for multiple instances with
same existing key.
One of the following could be the reason for the failure of the test:
a) Instances could have been found in 'FAILED'.
b) Function keys could have been listed in 'RESULT'.
c) If there are keys listed in failed for these keys there shall be at
least one error message in 'REPORTED'.

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?

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 RAP_BO_CTR_TEST_DEMO001 - FUNCTION_DUPL_EXISTING_KEY ?

  The SAP error message RAP_BO_CTR_TEST_DEMO001 FUNCTION_DUPL_EXISTING_KEY typically indicates that there is an attempt to create or update a business object (BO) in the SAP RAP (Rapid Application Programming) model, but the operation is failing due to a duplicate key violation. This means that the key you are trying to use for the business object already exists in the database.
  Cause:
  
  
  Duplicate Key Entry: The most common cause is that you are trying to insert a new record with a key that already exists in the database. This could happen if:
  
  You are trying to create a new instance of a business object with a key that is already used by another instance.
  There is a logic error in your application that is attempting to create the same record multiple times.
  
  
  
  Concurrency Issues: If multiple users or processes are trying to create the same record simultaneously, it can lead to this error.
  
  
  Incorrect Data Handling: If the data being sent to the backend is not properly validated or if there are issues in the data mapping, it can lead to attempts to create duplicates.
  
  
  Solution:
  
  
  Check Existing Records: Before creating a new record, check if a record with the same key already exists in the database. You can do this by querying the database or using the appropriate RAP service to check for existing entries.
  
  
  Modify Key Generation Logic: If the key is generated programmatically, ensure that the logic for generating unique keys is robust and does not produce duplicates.
  
  
  Handle Concurrency: Implement proper locking mechanisms or transaction handling to avoid concurrent attempts to create the same record.
  
  
  Error Handling: Implement error handling in your application to catch this specific error and provide meaningful feedback to the user, such as suggesting they check for existing records.
  
  
  Review Business Logic: Ensure that the business logic in your application is correctly implemented to prevent duplicate entries.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for RAP and business object handling for more details on how to manage keys and handle errors.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Debugging: Use debugging tools in SAP to trace the execution flow and identify where the duplicate key is being generated or checked.
  
  By following these steps, you should be able to resolve the RAP_BO_CTR_TEST_DEMO001 FUNCTION_DUPL_EXISTING_KEY error and prevent it from occurring in the future.