As per the 2022-07 release note (https://shopify.dev/api/release-notes/2022-07), it says → “fulfillment_service endpoint on the ProductVariant resource in the REST Admin API is deprecated.”
I would like some clarification on this as well. I switched our processes to use the 2022-07 API version this week and now the fulfillment API is no longer working. We were receiving deprecation messages about this, so maybe this API version finally pulled the plug on this legacy fulfillment API.
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