Google advertises my out of stock items!

[Vic25]

Need help! I had my all Shopify items approved by google merchant center (4 years at least). There were no errors until this morning. Now I have 200+ items/variants with [availability] error. All that items clearly says "out of stock" in my Shopify shop. But google merchant center shows them as "in stock" but with the quantity "0".  I have tried to update quantity on Shopify (add 1 to stock, then put "0" again). It helped to update merchant's center records and remove errors. BUT! After 2-3 hours all that items turned "available" again on google.

   That out of stock items have impressions and google ads successfully charge me for clicks! I have contacted google already but I am impatient to wait for an answer...

[EmmanuelFlossie]

Out of stock can be signalled with different settings, for example you can have zero stock, but have continue to sell enabled. All of this changes how availability is added in Google Merchant Center.

Check your product settings that these are correct.

Also check that your product landing page availability status is correct, you can check using: https://search.google.com/test/rich-results

[Vic25]

Thank you very much for your ideas! I have received absolutely useless respond from Google. They confirmed that there is a problem and warned me to resolve it ASAP without giving me any idea where to start... So I have just switched to Multiple Google Shopping Feeds App and all problems disappeared. All out of stock items are actually out of stock now and do not pop up on google with a paid clicks!