Message type: E = Error
Message class:  FKKFMCHK - Funds Management Checks/Derivations in FI-CA 
Message number: 020
Message text: Write-off not possible
You want to write off a business partner item with Funds Management
character '&V1&' . The write-off document should clear the business
partner item immediately. This is not possible for technical reasons
with an active Funds Management.
Write-off is not possible in the present form.
Proceed in two steps:
First enter the write-off document and post it without clearing.
Clear the write-off document in the second step.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FKKFMCHK020: Write-off not possible typically occurs in the context of the SAP Contract Accounts Receivable and Payable (FI-CA) module. This error indicates that a write-off operation cannot be completed due to certain conditions not being met. Here are some common causes, potential solutions, and related information for this error: Causes: Open Items: There may be open items in the account that prevent the write-off from being processed. Write-off Limit: The write-off amount may exceed the defined limits set in the system. Account Status: The account may be in a status that does not allow write-offs (e.g., blocked or closed). Document Type Restrictions: The document type used for the write-off may not be configured to allow write-offs. Missing Authorization: The user may not have the necessary authorizations to perform write-off operations.
Configuration Issues: There may be configuration settings in the FI-CA module that need to be adjusted. Solutions: Check Open Items: Review the account for any
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