You may see a Store ID when logged into your account on Associates Central at the top right that begins with “onamz.“ This Store ID was created by Amazon on your behalf for a program benefit that will be enabled in the future.
You should continue to use the same Store IDs you have been using when driving traffic to Amazon. The new Store ID does not affect your influencer commission rates for traffic that you send to your storefront or to other pages on Amazon. No action is required from you at this time.
More information will be coming very soon, no action is required on your part.