Message type: E = Error
Message class:  SLS_PAYSP - Payment Service Provider Integration 
Message number: 007
Message text: Document with payment method &1 can only be rejected completely
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The SAP error message SLS_PAYSP007 indicates that a document with a specific payment method can only be rejected completely. This typically occurs in the context of payment processing within the SAP system, particularly when dealing with payment documents that have been created for invoices or other financial transactions.
Cause: The error arises when you attempt to partially reject a payment document that is configured to only allow complete rejection. This can happen due to several reasons: Payment Method Restrictions: Certain payment methods may have rules that require complete rejection of the payment document. Document Status: The status of the document may not allow for partial rejections. For example, if the document is already in a state that does not permit modifications. Configuration Settings: The configuration settings in the SAP system for the payment method may dictate that only complete rejections are allowed.
Solution: To resolve the SLS_PAYSP007 error, consider the following steps: Complete Rejection: If you need to
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