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Why are my store items showing on the wrong site?
Summary
Will show you have to check to make sure you eBay store is linked to the correct eBay site
Detailed Description
When you sign into eBay, go to My eBay, and subsribe to a store. You MUST make sure you are signed into the correct eBay site. If you are a US seller you want to go to eBay US, if you are a UK seller you want to go to eBay UK. You can check your store subscritpion by using the GetUser API, http://developer.ebay.com/DevZone/XML/docs/Reference/eBay/GetUser.html. This will give you back the StoreURL and StoreSite, here is an example,
<StoreURL>http://www.stores.sandbox.ebay.com/id=132999687</StoreURL>
<StoreSite>US</StoreSite>
If you are seeing issues like the following, you may have subscribed your store to the wrong site,
1. All my items are showing up in my store, but the links take me to another site
2. I made a call to GetUser, and tried to use the store link, but the link is invalid
If you are seeing these issues, and you have indeed subscribed your store on the wrong site, you can simply cancel that subscription and then subscribe a store to the correct site. To cancel a store subscription simply login to your seller account, go to My eBay > Subscriptions. And "Cancel Subscription".
Additional Resources
GetUser - http://developer.ebay.com/DevZone/XML/docs/Reference/eBay/GetUser.html