1) Include store and vendor identification columns in bulk import and export
2) Provide search capabilities based on vendor and store in the admin panel
3) Include store and vendor selection dropdowns in the product bulk edit page
1:) when vendor login to system , we can read vendor id , and warehouse id from session automaticly , vendot no need to choice nothing from dropdown menu when import products.
but if mainly administrator want to import products from any vendor , amin must choice warehouse and vendor name from dropdown menu for which vendor price will be imported.