Following error ocurred when assigning a material type to a new group for defining a different number range:
System error during group maintenance
Message no. NR899
The system has identified an inconsistency in the tables for number range maintenance.
In most cases, you can overcome this by executing the report RSSNR0T1 (Consistency check and repair of number range intervals). This report lists the inconsistencies and eliminates them (with F11 = "Confirm").
How can I execute the report RSSNR0T1 ?