How To Fix VB606 - Number range & is not defined for internal number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: VB - Sales Documents: Logical Databases and Views

• Message number: 606

• Message text: Number range & is not defined for internal number assignment

What causes this issue?

Number range &V1& has not been assigned for external number assignment.

System Response

The system cannot execute the internal number assignment with this
number range.

How to fix this error?

Please specify a number range in the appropriate document type for
whichthe internal number assignement has been designed.
INCLUDE 'NA_CUST_MAINTAIN_3' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.