How To Fix RAP_DSP_REQUEST004 - Instance creation of entity &1 twice is not possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: RAP_DSP_REQUEST - Request Messages

• Message number: 004

• Message text: Instance creation of entity &1 twice is not possible.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RAP_DSP_REQUEST004 - Instance creation of entity &1 twice is not possible. ?

  The SAP error message RAP_DSP_REQUEST004 indicates that there is an attempt to create an instance of an entity that already exists in the context of the RAP (Rapid Application Programming) model. This typically occurs when you try to create a new instance of an entity that has a unique key or identifier that already exists in the database.
  
  Cause:
  
  Duplicate Key Violation: The most common cause is that the entity you are trying to create has a unique key constraint, and the key you are using for the new instance already exists in the database.
  Incorrect Logic in the Application: There may be a logical error in the application code that leads to multiple attempts to create the same instance.
  Concurrency Issues: If multiple users or processes are trying to create the same entity instance simultaneously, it can lead to this error.
  
  
  Solution:
  
  
  Check for Existing Instances: Before attempting to create a new instance, check if