What is your goal?
I wanted the workflow to hit a specific, fixed time every day instead of regular interval based scheduling.
What is the problem & what have you tried?
I dug straight into the raw execution logs, scrolling through lines of data until I finally found where the path broke down:
I look this up online, every forum post says the exact same thing: “Hey, your 24-hour time format is wrong.”
I went full obsessive-mode trying to crack this validation error:
The Format Loop: I tried 12-hour format (hh:mm). Error. I tried 24-hour format (HH:mm). Error.
The Micro-Check: I re-typed it checking for accidental trailing spaces, hidden characters, or a rogue semicolon instead of a colon. Nothing. It was pristine.
The UI Trap: A few old threads blamed browser language settings and local time zones distorting the input. But I didn’t even type it manually the last few times—I used Make’s own native UI pop-up time picker. It’s supposed to normalize the data automatically, but it still choked.
Error messages or input/output bundles
Bad Request: Validation failed for 1 parameter(s).
Invalid value in parameter ‘scheduling’ at path ‘.restrict[0].time[1]’.
Create public scenario page
https://eu2.make.com/public/shared-scenario/GSZPmgu5WUu/se01-schedule-based-autopost
Screenshots (scenario flow, module settings, errors)