For example, the product title or the product description. But also: color, stock, or shipping information. The feed can be generated in several ways, with some being our preference more than others: importing a CSV file. For this option, you print out a CSV file of your product information once and load it. I do not recommend this option, because price and stock then have to be updated manually, for example. If you do not do this in time, this can lead to disappointment.
Google spreadsheet. Another option is to create a link between your web shop and a Google spreadsheet. You can automatically update the information pushed here. This is already a slightly better option than a CSV file. Scheduled fetch from URL. You provide a feed URL to Google Merchant Center. This is the most common way, as this URL is job function email list updated daily. So everything is completely up-to-date. API link. It is also possible to create an API link between the website and Google Merchant Center. I recommend this option, because Merchant Center then immediately takes over all available information from the web shop and updates it daily. When you have finally loaded the product feed into Google Merchant Center, the products will be loaded slowly. This always takes a while.
But in the end you can see in the overview how many products have been approved and which have been rejected (for various reasons). Check for these products why they have been rejected and try to make adjustments. The 3 most common disapprovals within Merchant Center: GTIN is unknown. For some products it is mandatory to indicate a GTIN (barcode). For example, Google knows that the products have passed all tests and can therefore be sold. Promotion overlay on product images. Product images cannot have promotional text within the images.