Hi,

1). Purchase Receipt :

This refers to the process of confirming the delivery of products from a supplier.
In Odoo, this is typically done by creating an "Incoming Shipment" record, which records the reception of products into your inventory from your supplier.
You can create an Incoming Shipment from a purchase order to confirm the receipt of goods.

2). Sales Receipt :

While "Sales Receipt" isn't a standard term in Odoo, the process typically involves creating a sales order to confirm the sale of products to a customer, followed by creating an invoice to bill the customer for the sale.
A "Sales Order" represents the customer's request to purchase products, while an "Invoice" documents the sale and requests payment from the customer.

3). Display Serial & Lot Number in Delivery Slips:

This refers to the ability to show serial numbers and lot numbers for products on delivery slips.
In Odoo, you can track products by serial numbers or lot numbers. Once configured in the product settings, these details can be displayed on delivery slips.
This helps in accurately documenting the products being delivered, especially for industries where tracking serial numbers or lot numbers is important (e.g., for traceability or warranty purposes).

Hope it helps

Hi Emma

- Purchase Receipt: https://www.odoo.com/documentation/user/14.0/accounting/payables/supplier_bills/purchase_receipts.html?highlight=purchase receipt

- Sales Receipt: The same principle of purchase receipts, but for sales

- Display Serial & Lot Number in Delivery Slips: If you are working with Lots & Serial Numbers, this simple function is useful if you want to create Delivery slips where the lots and serial number are listed

I hope it helps

BR

Ricardo