Batch Quantity Fetching in Batch Doc

Hi everyone,
I’m very very new to ERPNEXT and stuck in fetching available stock in batch.
Can anyone guide me how can I fetch Available Stock in a particular batch after splitting.

Suppose I have a Batch like BAT0008 and Qty is 100Kg and then i click split button from Overview window and after splitting I need to fetch stock quantity automatically. Like when created then like expiry date and other details available quantity also should be updated.

Thank you in Advance

When splitting the batch, then I also update Stock Levels or Batch Quantity. again test it in the local.

Can you tell me your erpnext verion?

version 15.