Message type: E = Error
Message class: BK - Create, Display, Reverse Controlling Document
Message number: 045
Message text: Number already assigned; select another number.
You selected an external number for which a cost accounting document
already exists in the SAP System.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Display the number range information and assign a new external number.
Let the system automatically assign a number for you (<ZH>Environment
-> CO document NoRanges</>).
Error message extract from SAP system. Copyright SAP SE.
BK045
- Number already assigned; select another number. ?The SAP error message BK045 ("Number already assigned; select another number") typically occurs in the context of financial transactions, particularly when dealing with document numbers in the SAP system. This error indicates that the number you are trying to use for a document (such as an invoice, journal entry, or other financial document) is already in use or has been assigned to another document. Causes: Duplicate Document Number: The document number you are trying to enter has already been assigned to another transaction in the system. Number Range Configuration: The number range for the document type you are using may be configured incorrectly, leading to conflicts. Manual Entry Error: Users may inadvertently try to enter a document number that has already been used. System Settings: The system may be set to use a specific number range that does not allow for the reuse of numbers. Solutions: Use a Different Number: The simplest solution is to select or
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