Adding Scheduled Notifications to SaaS
We needed to send a welcome email after signup, a nudge on day 3, and a trial warning on day 12. What started as 'just add a cron job' turned into a two-month infrastructure project.
Guides, updates, and ideas on scheduling, automation, and staying in sync with the people who matter.
We needed to send a welcome email after signup, a nudge on day 3, and a trial warning on day 12. What started as 'just add a cron job' turned into a two-month infrastructure project.
I've built scheduling infrastructure from scratch. Twice. The first time took two months. The second time I knew better — and it still took six weeks. Here's what I learned.
I had a cron job that sent weekly billing reminders. It failed on a Saturday. I found out the following Thursday, when a customer asked where their invoice was.
I spent a weekend building a polling loop so my agent could 'wait' for a deploy to finish. 1,440 API calls a day, and it still missed the window. There's a better way.
I kept hitting the same wall — building my own projects, running two companies, experimenting with AI agents. Everyone needed to do something later. Nothing made it simple.
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