Message type: E = Error
Message class:  CRM_GRM_BTX - Generic business transaction messages for Grantor 
Message number: 040
Message text: Reference item &1 not allowed as its status is Completed
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.
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.
The SAP error message CRM_GRM_BTX040 indicates that a reference item in a CRM (Customer Relationship Management) transaction cannot be processed because its status is marked as "Completed." This typically occurs in scenarios where you are trying to perform an action (like editing, deleting, or adding a reference) on a transaction that has already reached a final state.
Cause: Status of the Reference Item: The reference item you are trying to work with has a status of "Completed," which means it is no longer available for modifications or further processing. Business Logic: The system is designed to prevent changes to completed transactions to maintain data integrity and ensure that finalized records are not altered.
Solution: Check the Status: Verify the status of the reference item. If it is indeed marked as "Completed," you will need to determine if any further action is necessary or if you need to work with a different item that is not
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CRM_GRM_BTX039 Reference item must not be changed because item has follow-up actions
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CRM_GRM_BTX038 Holdback reference item &1 expense type does not match item expense type
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CRM_GRM_BTX041 No advance reference item assigned, clearing is not allowed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CRM_GRM_BTX042 No holdback reference item assigned, holdback is not allowed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.