Message type: E = Error
Message class:  FICUSTOM - Customizable Messages for Funds Management 
Message number: 154
Message text: Unpermitted business transaction
You are posting an invoice/credit memo and by so doing are immediately
clearing another invoice/credit memo. This posting is not allowed when
the online payment update is active.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Post the invoice/credit memo without clearing and then clear the
documents.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FICUSTOM154: Unpermitted business transaction typically occurs in the context of financial transactions within the SAP system. This error indicates that a specific business transaction is not allowed based on the configuration settings or user permissions in the system. Causes: Configuration Settings: The transaction type you are trying to execute may not be permitted due to the configuration settings in the Financial Accounting (FI) module. This could be due to restrictions set in the transaction codes or business rules. User Authorizations: The user attempting to perform the transaction may not have the necessary authorizations or roles assigned to execute that specific business transaction. Transaction Type Restrictions: Certain transaction types may be restricted based on the company code, fiscal year, or other criteria defined in the system. Customizations: If there are custom developments or enhancements in the system, they may impose additional restrictions on certain transactions. Solutions: Check Configuration: Review the configuration settings in the
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