- Product related endpoints being unavailable or actively blocked by server firewall. Please check and make sure this is not the case.
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If you get the following error message: "The consumer isn't authorized to access %resources":
If you are on Magento version 2.4.4 or higher check the following setting.When on the Magento Admin Panel, go to Stores > Configuration > Services > OAuth > Consumer Settings.
Check if the Allow OAuth Access Tokens to be used as standalone Bearer tokens is set to: "Yes".