Multi-level BOM updates

Hi,

I’m trying to work out if something is designed behaviour or if I am doing something wrong.

I have a multilevel BOM structure for my product.
I have BOMs for all the Items that require them.
When an Item is added to a BOM do I need to explicitly add the BOM for the Item in the row editor?
When I update a BOM on an Item do I need to go and manually update all the parent, grandparent, great-grandparent BOMs?

Thanks,

Hello fishter

you can use bom import tool add data it in a one stocked . changes in bom depends upon bom levels .which level of bom you want to change suppose you have changes in 2 level of bom you need to duplicate that bom and updated that duplicate bom with order one which already added in your product assembly via bom update tool