Line number

Element type: Required

Endpoints/models used: LineItemModel

Your integration must provide a way for users to enter a unique line number for each line in a transaction. This field is optional for users. If not specified, AvaTax will automatically number lines on an invoice starting with 1.

A line number is added to your application using the number field in the transaction's LineItemModel.

View example:

{
  ...,
  "lines": [
    {
      "number": "1",
      "quantity": 1,
      "amount": 100,
      "taxCode": "PS081282",
      "itemCode": "Y0001",
      "description": "Yarn"
    }
  ],
  ...
}