We are trying to add some key/value pairs under order's line item objects.
The closest things we could find in the API spec is the customAttributes under LineItemMutable:
We could get the field by using graphQL
However, we can't find any mutation query for updating this field.
May i know if this field can be created/updated through API (Both graphQL or Restful API is OK), thanks.
Great question here, I wanted to share a few insights to get you started. Utilizing the outlined functionality really depends on what stage of an order you plan or need customAttributes attached. For example, if you want to do this after an order has already been completed with the Admin API, the mutation orderUpdate will allow you to add customAttributes via GraphQL. I'd also suggest exploring some of our other resources, Metafields and the Storefront API may provide insights on similar and related functionalities - Cheers!
Looking for the same: A way to update customAttributes of lineItems of an order (not customAttributes of an order) after the order was created in shopify (and probably before fulfilment, but potentially even after...).
A few use-cases for this:
Use-Case 1: Allow customer to customise things AFTER placing an order (in order to not complicate the order-process).
Use-Case 2: Allow customer to make changes to attributes (e.g. a gift or engraving text after placing the order)
Use-Case 3: Let staff make those changes from custom dashboard.
Use-Case 4: Traceability (add product information / id etc. to a product after it was shipped).
Only current work-around I see is to store those custom_attributes for line items of orders in a separate database outside shopify. Not nice though.
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