Message type: E = Error
Message class:  BKK_PRENOTE - BCA : Prenotes 
Message number: 201
Message text: Internal number of prenote not generated; Number range overflow
You attempted to create a prenote, but the system could not generate an
internal ID. This happens when there is an overflow in the number range
interval.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Create or extend the number range for object BKK_PRENOT.  On the <ZK>SAP
Easy Access</> screen, choose <LS>Tools -> ABAP Workbench -> Development
-> Other Tools -> <DS:TRAN.SNRO>Number Ranges.</></>
Error message extract from SAP system. Copyright SAP SE.
The SAP error message BKK_PRENOTE201 indicates that there is an issue with the internal number generation for prenotes in the Bank Accounting module. Specifically, it suggests that the number range for prenotes has overflowed, meaning that the system has run out of available numbers to assign to new prenotes.
Cause: Number Range Configuration: The number range for prenotes may not be properly configured or has been exhausted. This can happen if the number range is set too low or if there has been an unusually high volume of prenote transactions. Number Range Overlap: There may be overlapping configurations in the number range settings, leading to conflicts. System Settings: The system settings may not allow for automatic number generation, or the number range may not be set to allow for sufficient numbers.
Solution: Check Number Range Configuration: Go to the transaction code SNRO (Number Range Objects). Look for the number range object related to prenotes (usually BKK_PRENOTE). Check the current
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