Diagnosis
You have entered a document number from thenumber range interval forinternal number assignment
. However, a sales document already exists with the number &V1&.

System Response
You can choose a number from the number range interval for internaldocument number assignment, if you want to close the gaps between thenumbers assigned by the system. However, this is not possible if thereis already a sales document for the number you have chosen. The systemdoes not transfer this number for the new delivery.

Procedure
Choose another document number, for which there is no delivery orchoose a document number from the number range interval for externalnumber assignment.
If necessary, contact your system administrator who will tell you whichdocument numbers are still free.