This API is used for creating sales invoice in Paper.id, and also to provide a payment link that can be shared to the customer as needed.

By creating invoice using this API, also automatically create a new partner if the partner number is not yet registered

Path	Data Type	Validation	Description
`invoice_date`	Date	Mandatory	Date of the invoice
`due_date`	Date	Mandatory	Due date for the invoice
`number`	String	Mandatory	Invoice number
`customer.id`	String	Mandatory	ID of the customer
`customer.name`	String	Mandatory	Name of the customer
`customer.email`	String	Optional	Email of the customer
`customer.phone`	String	Mandatory	Phone number of the customer
`items`	Array	Mandatory	List of items in the invoice
`items.name`	String	Mandatory	Product Name
`items.description`	String	Mandatory	Description of the item
`items.quantity`	Int	Mandatory	Quantity of the item
`items.price`	Int	Mandatory	Price of the item
`items.discount`	Int	Optional	Discount on the item -- would be default to percentage in case `discount_type` is missing
`items.discount_type`	string	Optional	Type of discount - can be either `amount` or `percentage`
`items.tax_id`	Int	Optional	Tax ID on the item
`items.additional_info`	Object	Optional	Additional information related to the item
`signature_text_header`	String	Optional	Text above the document signature area
`signature_text_footer`	String	Optional	Text below the document signature area
`terms_condition`	String	Optional	Terms and conditions for the invoice
`notes`	String	Optional	Additional notes for the invoice
`send.email`	Boolean	Mandatory	Flag to determine if the invoice should be sent via email
`send.whatsapp`	Boolean	Mandatory	Flag to determine if the invoice should be sent via WhatsApp
`send.sms`	Boolean	Mandatory	Flag to determine if the invoice should be sent via SMS.
`additional_info`	Object	Optional	Additional information for the invoice
`additional_discount`	Int	Optional	Additional discount applied to the transaction -- default to absolute amount in case `additional_discount_type` is missing
`additional_discount_type`	String	Optional	Discount type applied to the whole invoice - can either be `percentage` or `amount`
`additional_fee`	Object	Optional	Any extra charges or fees incurred in addition to the base transaction amount
`additional_fee.delivery_fee`	Int	Optional	The charge for delivering goods or services

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