> For the complete documentation index, see [llms.txt](https://developer.firmhouse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.firmhouse.com/graphql-api/api-reference/objects/create-free-order-line-input.md).

# CreateFreeOrderLineInput

### Fields

#### clientMutationId ([String](/graphql-api/api-reference/objects/string.md))

A unique identifier for the client performing the mutation.

#### orderId ([ID](/graphql-api/api-reference/objects/id.md)!)

ID of the order to add a line to.

#### productId ([ID](/graphql-api/api-reference/objects/id.md))

The ID of the product for this order line.

#### shopifyVariantId ([String](/graphql-api/api-reference/objects/string.md))

The Shopify variant ID to look up the product. Either product\_id or shopify\_variant\_id must be provided.

#### quantity ([Int](/graphql-api/api-reference/objects/int.md)!)

The quantity of products for this order line.