Looking for logging into the Google Merchant Center site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Google Merchant Center site. After that you can login as usual with your login credentials.
https://www.google.com/retail/solutions/merchant-center/
https://www.google.co.jp/retail/solutions/merchant-center/
https://support.google.com/merchants/answer/188924?hl=ja
https://support.google.com/merchants/answer/188493?hl=ja
https://accounts.google.com/Login?service=merchants
https://blog.feedmatic.net/entry/2018/10/30/162513
https://help.shopify.com/ja/manual/apps/apps-by-shopify/google-shopping-app/google-merchant-center
https://help.shopserve.jp/manual/110/
https://help.godatafeed.com/hc/en-us/articles/115003755811-Connect-to-Google-Merchant-Center-Find-your-Merchant-ID
https://unyoo.jp/2017/09/google-merchant-center-5-updates/
http://www.zono-design.com/web-output/webshop/google-merchants-japanese/
https://ferret-plus.com/10008
https://cpcstrategy.com/product-listing-ads/link-adwords-with-google-merchant-center/