An exception occured during internal number allocation

What causes this issue?

The system cannot assign numbers for the schedule records when
scheduling. You possibly have not created any number range object for
Sequencing.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Access the transaction for <DS:TRAN.LASN>maintaining the number range
objects for Sequencing (LASN)</>.
Choose <LS>Change interval</> and check whether you have created an
interval for the number range object in Sequencing <LS>LASP_OPID</>.
If no interval exists, add one by choosing <LS>Process -> Add
interval</>.
Then enter the <LS>Number 01</> for the interval as well as a number
range of your choice.
Save your entries.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.