> For the complete documentation index, see [llms.txt](https://doc.simax.fr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.simax.fr/documentation-simax-anglais/functional/purchase/invoice.md).
# Invoice
## Context:
After receiving the supplier order, **CartonPACK** and **COTONOUX** delivered the products ordered by **MASOCIETE**.
Following receipt, the corresponding purchase invoices were issued by **CartonPACK** and **COTONOUX to MASOCIETE.**
With regard to **CartonPACK**, a credit note for **€500** was issued due to **500 boxes** found to be defective during the receipt inspection.
## Implementation on SIMAX
### Invoicing a delivery receipt
#### Purchase invoice
To create the purchase invoice, we will select the delivery receipt and **\[\[Purchase Invoice]].**
And **\[\[Save]].**
The invoice is now visible in the list of purchase invoices.
### Credit note
To request a credit note for a $50 invoice, go to **Purchase > Supplier Invoice > Purchase invoice.**
Next, select the purchase invoice and then click on **\[\[Credit Note]].**
Let's change the credit note amount and **\[\[Save]].**
The credit note is visible in the list.
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