Why can't you activate 09 (recurring inspection type) in material master and define inspection interval in material master QM view. this will trigger 09 inspection lot on defined interval. (Example; System update next inspection date = GR date + inspection interval in batch master. If you recieve batch on 1st Jan and inspection interval is 31 days then system update next inspection date as 1st Feb. So when you run dead line monitoring (QA07 manual/ QA05 auto). System trigger 09 inspection type inspection lot.
You can use this inspection lot as trigger point to verify SLED date in batch master. Think about this concept, this should help in your scenario.