Mass Maintenance of Material Master Data 
Maintaining master data can be time-consuming if you have to make each change individually. It is quicker to make one change and have the system automatically update all the affected records automatically. The mass maintenance tool enables you to change a large group of master data records at once.
You can select the mass maintenance tool within a number of master data transactions. All these mass maintenance tools are based on the same basic framework and user interface.
Features
You can mass maintain data related to the following segmentation related enhancements made to material master:
segmentation structure
segmentation strategy
fix segmentation
consumption priority
stock protection indicator
discrete batch management