Diagnosis
You are trying to change the lower limit of the number range forunplanned characteristics.

System Response

Procedure
When you change the number range for unplanned characteristics, youmust ensure that,
the number of an inspection characteristic in an inspection plan doesnot fall within the range of numbers for unplanned characteristics
the number of an unplanned characteristic that has already been createddoes not fall within the range of numbers for unplanned characteristics
If you ignore these two rules, inspection plans and analyses will beinconsistent.