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Message type: E = Error
Message class: V4 - Nachrichten Verkauf (Variable Meldungen und EDI-Meldungen)
Message number: 183
Message text: External document &1 is already being used
You have already processed an intermediate document (IDoc) for
external document number &V1&. Either the IDoc has been submitted more
than once or there are several IDocs for the same external document
number.
The system does not process an IDoc if it does not have a unique
external number. If the system allowed several IDocs for one external
number, you would not be able to determine a referenced document for
correction documents, for example.
Change the external document number in the IDoc, or ask the customer to
send a correct IDoc.
Error message extract from SAP system. Copyright SAP SE.
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SAP messages fall into 3 different categories: Error messages
(message type = E), Warnings (W) or Informational (I) messages.
An error message will prevent you from continuing your work - it is a hard stop and you need to fix the error before you can proceed. A warning message will stop your work, however, you can then bypass the warning by pressing the Enter key on your keyboard. That said, it is still good practice to investigate the cause of the warning message and address it. An information message will not stop your work and is truly just for informational purposes.
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