The upper/lower limit of RP_TRFRMNR is not configured correctly

What causes this issue?

Check the lower and upper limits of RP_TRFRMNR number range.

System Response

If the number range is not configured correctly, the system issues an
error message and halts the Tax Reporter from further processing.

How to fix this error?

Transaction to configure number ranges: SNRO
For object ID 01 the lower limit should be greater than 0 and upper
limit should be less than 900000
For object ID 99 the lower limit should be greater than or equal to
900000 and the upper limit should be less than or equal to 999999.

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

Error message extract from SAP system. Copyright SAP SE.