How To Fix ITOB307 - Number range & is not an external number range

SAP Error Message - Details

• Message type: E = Error

• Message class: ITOB - Messages for development class ITOB

• Message number: 307

• Message text: Number range & is not an external number range

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ITOB307 - Number range & is not an external number range ?

  The SAP error message ITOB307 indicates that the number range you are trying to use is not defined as an external number range. This typically occurs when you are attempting to create or process an object (like a document or a transaction) that requires a number from a number range that is set up to be internal rather than external.
  
  Cause:
  
  Number Range Configuration: The number range you are trying to use is configured as an internal number range in the system. Internal number ranges are automatically generated by the system, while external number ranges require manual input.
  Incorrect Number Range Assignment: The transaction or document type you are working with may be incorrectly assigned to a number range that is not set up for external use.
  User Input: If you are trying to manually enter a number in a field that is supposed to use an external number range, and the system is