Shelf Life Expiry range is maintained in Material aaster say 36 months.
For the same material at batch master level 30 months SLED is maintained for specific batches.
During transactions the Batch mater SLED is overwritten by Material master SLED.
The requirement is that Material master SLED should not override the Batch master SLED.
Request your expert views in this regard.
Samson G Gabriel