I have maintained the general plant storage view, that means the total shelf life, remaining shelf life for a material. The SLED is active for the material (settings in OMJ5). So it is clear that when we maintain batches for the material the SLED will caluculate from material master and based on the remaining shelf life from materoal master system will block the material. So even i change the shelf life in batch data to 100 years but logically system will block this based on master record only. Now I dont want this functionality and i want change the genral plant view in material master, so what will happen to existing batches and transaction which are allready active. Please give some views.