Add and Update an Item

In this lesson, we’ll add some items to our FreshBooks account so we can create invoices and payments to the client. We’ll see the following endpoints:

• Create an item: /accounting/account/{ACCOUNT_ID}/items/items
• Update an item: /accounting/account/{ACCOUNT_ID}/items/items/{ITEM_ID}

Our application needs to have user:billable_items:read and user:billable_items:write permissions to perform different operations on items using FreshBooks API.