Automate reminder emails for events

Automate reminder emails for events

Hi team, 

I am trying to automate send event reminders via zoho campaign to my attendees 1 day prior to my scheduled events. I used zoho flow, autoresponder in zoho campaign, as well as I used workflow and automation - but none of these methods are working. I did testing several times - created events and added all necessary workflows like delay and set a variable. I wait everyday at 1pm thinking I will now receive the test reminder email - but I dont receive it through any of the 3 methods I mentioned above. I really need to fix this problem. Please help!