> ## Documentation Index
> Fetch the complete documentation index at: https://docs.commenda.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Products

> Manage products and their tax codes for a corporation.

Products represent the goods and services your business sells. By creating and maintaining products with appropriate tax codes, you can ensure accurate tax calculations for your transactions.

## Product Ids and SKUs

Products can be uniquely identified by either of the following:

* `id`: The unique identifier for the product in Commenda's system.
* `sku`: A unique identifier generated by the seller and used consistently across each ERP.

## Product Taxability Codes

Products can be mapped to [product taxability codes](/engine/indirect-tax/taxcode). Commenda uses product taxability codes to determine whether products are taxable or exempt in each jurisdiction.

* Assign product taxability codes to each product with the `POST /product` (create) and `POST /product/:id` (update) endpoints.
* When calculating tax for a transaction using the `/calculate` endpoint, provide the `product_id` of the product associated with each line item in order to fetch the associated tax codes from the product itself.

## Bulk Upload of Products

Upload product data by sending a POST request to the /products/bulk endpoint.

### Format

Files must be uploaded in CSV format, with headers specified in our bulk uploads template.