How to get listings by UPC?

[forcefigures]

I am following the docs and the query should use the gtin parameter for the UPC:

https://api.sandbox.ebay.com/buy/browse/v1/item_summary/search?gtin=0630509655816

Yet, I can never get any results when I can see items available for both auction and but it now?

[znts-wholesale-global]

You can execute https://api.ebay.com/buy/browse/v1/item_summary/search?q=[your query] and then see If GTIN is included in the result. It is quite possible that GTIN is not attached with the products you are looking for. You should try on production and not on sandbox.

[forcefigures]

Thanks for the reply, I am actually taking random UPC from current listings as a test, but all in sandbox