How To Fix SADL_ENTITY_RUNTIME006 - Precondition required for action in entity &1~&2 (If-Match missing)

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_ENTITY_RUNTIME - Messages of SADL runtime and DDIC SADL entity runtime

• Message number: 006

• Message text: Precondition required for action in entity &1~&2 (If-Match missing)

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_ENTITY_RUNTIME006 - Precondition required for action in entity &1~&2 (If-Match missing) ?

  The SAP error message SADL_ENTITY_RUNTIME006 indicates that a precondition required for an action in the specified entity is missing, specifically the If-Match header. This error typically occurs in the context of OData services when trying to perform an update or delete operation on an entity.
  Cause:
  The error arises when the OData service expects an If-Match header to be included in the request, but it is either missing or not correctly set. The If-Match header is used to ensure that the operation is performed only if the entity has not been modified since it was last retrieved. This is a part of optimistic concurrency control, which helps prevent overwriting changes made by other users.
  Solution:
  To resolve this error, you should ensure that the If-Match header is included in your request when performing an update or delete operation. Here are the steps to do this:
  
  
  Retrieve the Entity: First, you need to retrieve the entity you want to update or delete. This will give you the current ETag (entity tag) value.
  
  
  Include the If-Match Header: When you send the update or delete request, include the If-Match header with the ETag value you retrieved. The header should look like this:
  If-Match: "etag_value"
  
  
  Check for Correct ETag: Ensure that the ETag value you are using is the most recent one for the entity. If the entity has been modified since you retrieved it, you will need to fetch the latest version and use its ETag.
  
  
  Testing: After making these changes, test the request again to see if the error is resolved.
  
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how it handles entity states and concurrency can be beneficial. The If-Match header is part of the HTTP specification used in OData services.
  SAP Documentation: Refer to SAP's official documentation for more details on handling OData services and error messages.
  Debugging: If you continue to face issues, consider using tools like Postman or SAP Gateway Client to debug your OData requests and responses, ensuring that headers are set correctly.
  
  By following these steps, you should be able to resolve the SADL_ENTITY_RUNTIME006 error and successfully perform the desired action on the entity.