Keep saying - "Missing value of required parameter 'to'. "

Hi, a few days facing same problem, trying to build scenario that starts with get email and ends with send an email. First I used Gmail’s watch email as starting hook, everything worked well until it came to Send email module that have initial mail’s sender’s address as “send to” - however it always shows error “Missing value of required parameter ‘to’.“ I was trying many different ways (JSON, get variable, tricks like {{1.from[1].address}} or {{regexreplace(1.headers; “/^From:.<(.+@.+..+)>.$/m”; “$1”; “i”)}}, abusing AI which says “everything mapped right etc…) - same error all the time. However, everything work when I “hardcode” and email address into the SendMail module. Same time, I tried to paste sender’s address into the text during scenario and noticed that it also remains blank (same problem with getVariable), so looks like Watch email can’t pass the sender’s email forward (even thought it appears in module’s output with no problem), WHY?
Before gave up after a few days of battle, I tried to replace WatchMail with MailHook module, but cant set Gmail forwarding because Hook never receive the confirmation email.
I’m completely stuck, but want to ask before giving up on Make. Had someone faced similar issue?

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The best way to get help here is to include screenshots in your post. Good luck!

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Welcome to the Make community!

We’d love to help, however, you have not provided sufficient information to demonstrate the problem that would allow us to reproduce the scenario and any issue/s and/or error/s.

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1. All Relevant Screenshots

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It would help us identify the issue by having screenshots of:

  • the full scenario,
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  • any external services (spreadsheet headers, sample data, regex101.com, etc.)

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