Message type: E = Error
Message class:  9J1UFDI - Messages for Ukraine E-Invoices 
Message number: 542
Message text: You can process negative CTIs together if they are related to the same TI
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The SAP error message 9J1UFDI542 indicates that there is an issue with processing negative CTIs (Credit Transfer Items) in relation to a specific TI (Transaction Item). This error typically arises when there are attempts to process negative CTIs that are not associated with the same TI, which is a requirement for processing them together.
Cause: The error occurs due to the following reasons: Mismatched TI Associations: The negative CTIs you are trying to process are linked to different TIs, which is not allowed. Data Entry Errors: There may be incorrect data entries or configurations that lead to the system not recognizing the CTIs as related. System Configuration: The system may not be configured to allow processing of negative CTIs together if they are not related.
Solution: To resolve this error, you can take the following steps: Check TI Associations: Verify that all negative CTIs you are trying to process are indeed related to the same TI. You can do
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