Products not showing up on google app or merchant center

[Funny_Mugger]

So my Shopify and the free google app were working great. I had over 500 product in my merchant account a lots of traffic. Then I decided to go from Shopify basic to Shopify plan. Right when I did that all my products in Google merchant disappeared. In the Shopify Google App 0 products. I tried everything. Removing the app and reinstalling. Turning all products off the Google sales channel and turning them back on. Nothing helped. 

I contacted Shopify support through the chat and they said I need to contact Google. My merchant center is fine and I have 6 online stores with using google merchant and ads, so pretty comfortable with finding any errors. This feels like a Shopify issue but support didn't do any supporting and I'm stuck. 

[EmmanuelFlossie]

First thing first, and it's an FYI, just to keep your business approved. In most cases having multiple stores will eventually get you suspended. As Google expects 1 merchant to have 1 website. Unless you are targeting multiple countries. But that is besides your question, just want to give you a kind headsup.

What I recommend you do, as you already removed the app and re-installed it, is to use a different app such as: https://apps.shopify.com/multiple-google-shopping-feeds

If you don't want to use a paid app, then the only steps you can do is contact Google using this form: https://support.google.com/merchants/contact/shopify_3p_support_app