Hopefully this should do it, and I can edit it if/when I get near 100 subscribers.

I think I got it! No errors appearing! If this works then you are my new best friend 

This is the basic flow I made (image below) and what I wanted was to set it so it would do this once a month, to check who has subbed for email marketing and send them a monthly email, but when I set this up with the schedule trigger I get that error...

I believe I have managed to set up a working flow, when a customer is created it checks if they have subbed to email marketing and if yes it sends the monthly discounts email. Although I haven't figured out how to get it to go on a schedule 

I went with the 'Email weekly summary of active discounts that use a code' template and changed an internal email to a marketing email, but now have this error (which I also kept getting when I attempted to make a flow myself)

I have Shopify email (not used Klaviyo) and I would more than welcome help setting it up, my brain imploded trying to set something up myself earlier 

Hello there, I am new to Shopify and the apps on there, and was wondering if it was possible to set up an automation to send an email to customers (who have signed up for emails) with a list of currently active discount codes? If it's possible then h...