Creates or updates a custom attribute for an order.
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The ID of the target order.
A string that contains no characters. In an API request this value will appear as ''. Can be used to remove a field’s value.
''
The key of the custom attribute to create or update. This key must match the key of an existing custom attribute definition.
The custom attribute to create or update, with the following fields:
value. This value must conform to the schema specified by the definition. For more information, see Value data types.
value
schema
version. To enable optimistic concurrency control, include this optional field and specify the current version of the custom attribute.
version
A nonexistent value. In an API request this value will appear as null. Can be used to clear a field entirely.
null
A unique identifier for this request, used to ensure idempotency. For more information, see Idempotency.
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