If i select the Tick mark in Purchasing view of my MM and the
system will through the batch number while creating GR.
then what is the purpose of creating Batch master using(MSC1N)
please explain the Batch master purpose and also the batch number
In case of batch managed goods, at the time of GR, you can either create a manual batch or allow the system to generate a internal batch No.
Now using MSC1N, you can create an external batch No. and maintain the batch characteristics and later use this batch while you receive the material during a GR.
Moreover, using MSC2N, you can change the batch characteristics and also batch related fields as per requirement
Trust this clears your query