Checklist of content
Must have on an invoice:
•    Legal company name within Saab Group.
•    Billing address
•    Invoice date
•    Due date
•    Invoice number
•    Reference to purchase order number. Note! Each invoice may only refer to one purchase order number.
•    Project activity is mandatory when purchase order number is missing.
•    Article Number 
•    Line Item number
•    Scope/Quantity
•    Total amount and currency/Total amount excluding VAT/Tax Rate
•    Swedish suppliers invoicing in foreign currency need to write the VAT amount in SEK as well.
•    Supplier company name
•    Supplier address
•    Supplier VAT registration number 
•    Supplier BG/PG (for payments in SEK in Sweden), IBAN and Swift code (for payments made in currencies other than SEK) or other bank account information.

Nice to have on an invoice:
•    Business area
•    Cost center
•    Project
•    Invoice Specification, i.e. what the delivery/invoice concerns
•    Delivery date

Likewise, all invoices shall comply with legal requirements, tax regulations and regulations in accordance to each applicable country.
Invoices that do not have the correct content as specified above are likely to be returned.