Is it possible to add expenses (costs within the purchase invoice, such as shipping costs but without affecting the supplier's account) to the purchase invoice without affecting the customer's financial account?
That makes no sense
The purchase invoice records money owed to the supplier.
Expenses due to a different supplier, for example the shipper, have no place on a purchase invoice from the original supplier
The purpose of these expenses is to include internal costs such as port transportation, customs duties, and labor costs, which can be calculated per unit along with the purchase price, allowing for tracking all purchase invoice costs, including the supplier's value and internal expenses.
There are systems that operate on this principle, and then factor in the weighted average calculation.
@Joe91 I have worked in similar fields so you can think of it this way, say you are purchasing a product abroad:
- Supplier A sells you a raw product.
- Supplier B Handles the packaging.
- Supplier C Handles the logistics and tariffs.
All this happens before receiving the product in your warehouse. Suppliers ask for advanced payments so there is a debt circulation and monthly balance statement sheets.
To make things worse Supplier B and C can take more than one product from vendors other than Supplier A throughout a single or multiple shipments.
As an accountant you are tasked to get the correct cost of each product including above expenses.
You can use Freight-in to allocate shipping, insurance, import duties, etc to inventory items
See the guides - search Freight-in in the Chatbox for details of how to do this
Shipping costs in the Manager system are recorded in the supplier’s account and credited to their account. This simplifies tracking shipping costs, providing a dedicated account window for recording expenses that are not included in the supplier’s account.