1. Issue: Identifier Exists
Steps to Resolve the issue
Step 1 - Go to Feed, select Feed rule
Step 2 - Create Rule -> search for identifier exists
Step 3 - On edit source, Use 'Set to' to assign a specific value from a feed select identifier exists and save
Step 4 - Add modification -> Use 'Clear' to delete this attribute value.
Step 5 - Save as draft & Apply it.
2. Issue: Unavailable mobile landing page
How to fix: https://support.google.com/merchants/answer/6098296?hl=en#null
For one or more of your products, you’ve submitted a landing page (via the mobile_link attribute) that cannot be accessed by Google when crawling with a mobile user-agent, which means it also may not be accessible to Google users who use mobile devices. If the landing page that is linked to your ad or listing is not available, it is both a bad user experience and a bad return on your ad spend, so we disable products that have an unavailable landing page.
These products will stop showing in Shopping ads and free product listings for desktop and mobile devices until Google is able to access the landing page. To resolve this issue, identify and fix the error to make sure your landing page is accessible from any device (including mobile devices), location, or browser.
3. Issue: Unavailable desktop landing page
How to fix: https://support.google.com/merchants/answer/6098155?hl=en#null
For one or more of your products, you’ve submitted a landing page (via the link attribute) that cannot be accessed by Google, which means it also may not be accessible to Google users. If the landing page that is linked to your ad or listing is not available, it is both a bad user experience and a bad return on your ad spend, so we disable products that have an unavailable landing page.
These products will stop showing in Shopping ads and free product listings until Google is able to access the landing page. To resolve this issue, identify and fix the error to make sure your landing page is accessible from any device, location, or browser.
4. Issue: Shopping Ad Violation Policy
How to fix: https://support.google.com/merchants/answer/6109185?hl=en
5. Issue: Product Data Quality Violation
How to fix: https://support.google.com/merchants/answer/9227009?hl=en
6. Issue: Incorrect Price & Availablity
How to fix: The fix is simple. You need to keep your prices updated. You can make a separate sheet for the discounted products and make a fetch from the original Google sheet. When there is a sale or promotion, you should change the sale price and not the actual price of the product.
7. Issue: Invalid images, Product titles, & Description
How to fix: The first step is to check the official Google Merchant Center guidelines. Make sure that your titles and descriptions comply with them appropriately. The most common mistakes are -> Too long product title, too long/short description, invalid image URL, special characters in your image, name or any other text, repetition of words in your product description, etc. Check all of these mistakes if there’s nothing wrong with your feed.