Are there any services that can populate all the data on my Google spreadsheet automatically to Webflow CMS, every single month?
Might be worth checking out https://www.whalesync.com/. I’ve never personally used it but I’m 90% sure it does what you’re looking for.
Alternatively, a Zapier automation could potentially do this as well. Or if you’re just looking for a monthly update, could you upload the new CMS items as a CSV using webflows CMS upload feature?