Trying to get my Google shopping set up. I have gone into the Google Merchant Centre and uploaded all my product details. After Google Merchant Centre verifies it comes back that the product availability doesn't exist 'Unclear value on your website [availability]'. Now in Shopify all products are available, and the word 'in stock' is featured in the product description.I have correctly structured data as per https://feedarmy.com/kb/shopify-microdata-for-google-shopping/ and done the rich test and all looks fine.
What am I doing wrong? I assume there is a piece of code in my theme that probably isn't 100 accurate for Google? Can anyone advise? If needed my website is www.mumsmasks.com.au