We’ve added a small but useful improvement to the document line form, designed to give you better visibility while invoicing.
When creating or editing invoices, credit notes, and other documents, selecting a stock-managed product and a warehouse will now display the product’s available stock in that warehouse directly on the line.

Need more detail? Just click the corresponding stock link to view the product’s availability across all warehouses, along with its total stock quantity.
This update helps you make faster decisions while invoicing, without switching pages to check inventory levels.