Based on ISO 2859-1 Inspection stage should be changed from "Tightened Inspection" to" normal Inspection" if 5 Consecutive lots accepted, also if 5 lots not accepted while on "tightened inspection", leads to discontinue Inspection. But in sap when we have 2 Rejected inspection lots and 3 Accepted inspection lots in tightened stage, we expect no change in quality level, but level will be changed from Tightened to Normal. Because system checks the value of "Insp. since change" field in QDL3, and considers the value as accepted lots, so leads to change in level.
How to solve this issue without Development?
Note:
In below link is mentioned that the standard system contains dynamic modification rule S01: "dynamic modification of the inspection severity according to ISO 2859-1, §9.3", but in S01 the number of rejection in tightened inspection is "1" (in ISO 2859-1 it is "5") and also no stage is defined for "Discontinue Inspection" and quality level always remains in tightened inspection however 5 lots rejected while on "tightened inspection".
https://help.sap.com/saphelp_45b/helpdata/en/64/e72c7dd435d1118b3f0060b03ca329/content.htm