Message type: E = Error
Message class:  FI - TR-FM Funds Management 
Message number: 665
Message text: Commitment item & is a summarization item
You have entered a commitment item that cannot be posted to. In this
function you must enter a commitment item that can be posted to.
The entry is not processed.
Enter a commitment item that can be posted to.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FI665 typically indicates an issue related to commitment items in the context of financial accounting and controlling. This error occurs when a commitment item is being used in a way that is not compatible with its definition as a summarization item.
Cause: The error message FI665 arises when: A commitment item that is defined as a summarization item is being used in a transaction that requires a detailed commitment item. The system expects a detailed commitment item for the transaction, but the provided commitment item is set up to summarize multiple items, which is not allowed in this context.
Solution: To resolve the FI665 error, you can take the following steps: Check Commitment Item Configuration: Go to the configuration settings for commitment items in SAP (Transaction Code: OPM4). Verify if the commitment item in question is indeed set up as a summarization item. If it is, you may need to use a different commitment item
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