Customer Meta Data Upload
Shopify API
https://help.shopify.com/en/api/reference/customers/customer#update-2019-10
Description
Allows you to associate meta fields with a customer.
Update Mode
Insert or Update
Writeback Fields
- id
- The Shopify assigned meta field id.
Insert & Update Handling
To associate a new meta field with a customer is it necessary to specify the Shopify customer_id and a unique value for the key field.
To update a value on an existing meta field it is necessary to specify the Shopify customer_id and the key name used previously to create the meta field.
There is no present way to delete Meta Field from a product.
When creating /updating a meta field the only way to indicate if the transaction was successful or not is the id value will be populated when the transaction is successful.