Hi,
Authorization Group is created & used for: changing Material Data/Master Data in QM. More often than not, it is used to define group of individuals for assigning Digital Signatures in SAP (Ex. for RR and UD transactions).
In case you have not defined any Authorization group and hence not assigned any, the reasons could be:
1. Version of Inspn Method
2. Key dates
3. Status.
Since you have responded to Craig that the plant is the same for MIC & Method, that possibility is eliminated.Regards, KrishnaM
