Message type: E = Error
Message class:  WB2_SE_INVC_AGENCY - Message Class for Invoices (Settlement Management) 
Message number: 226
Message text: Sum invoiced qty &1 (current invoice: &2) larger than qty (&3) in TC &4
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The SAP error message WB2_SE_INVC_AGENCY226 indicates that the sum of the invoiced quantity for a specific invoice exceeds the available quantity in the corresponding transaction code (TC). This typically occurs in the context of invoicing and billing processes, particularly in scenarios involving agencies or third-party billing.
Cause: The error arises when: The total quantity that has been invoiced (including the current invoice) exceeds the quantity that is available or allowed for invoicing in the system. There may be a mismatch between the quantities that have been previously invoiced and the quantities that are recorded in the system for the specific transaction.
Solution: To resolve this error, you can take the following steps: Check Invoiced Quantities: Review the quantities that have been invoiced for the specific transaction. Ensure that the sum of all invoiced quantities does not exceed the available quantity. Verify Available Quantity: Check the available quantity in the system for the relevant transaction code (TC). This can be done
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