I have a store with 150 products, I used the website crawl method to upload to google merchant centre as I thought it would be the fastest way of doing things and low and behold I have received a ton of errors.
My options to upload are either:
1) Google sheets
2) Use an app such as 'Feed for google shopping' (which I believe only allows me to run google shopping ads in my currency which won't work as I sell internationally)
3) Content API
4) Scheduled fetch
For a store set up like mine with many SKUs, what is the most effective way to integrate my store with merchant centre?