This page explains various reasons why a product page with in-store availability was rejected by Google and what steps can be taken to resolve the issues. Once you've updated your website according to the requirements, you must resubmit your example product landing page for review.
Your sample product page must provide customers the option to check a product's availability at different shop locations
Your sample product page must show the product price
Your sample product page must display shop-specific availability for your product
Resubmit your example product landing page
In your Merchant Center account, click the Settings and tools icon , then select Add-ons.
Select Active and click Show me under local inventory ads.
Click Show me next to the country for which you wish to resubmit the landing page.
Scroll down to 'Product page experience'.
Under the product pages with in-store availability option, update the product URL that shows the shop-specific landing page.