sending an email on from Submission

ref: https://support.wix.com/en/article/corvid-tutorial-sending-an-email-on-form-submission

I’ve folloed this tutorial and I think I am almost there. Basically 2 things are not clear to me:
1 - on email.jsw, the “from email field” I dont understand, since the sender should be the email adres one fills in to a text input in the form
2 - in the event handler, I filled in my dataset name “quotes”, but it returns “quotes is not a valid selector”???

I am using SendGrid as 3rd party email delivery service

below 3 screenshots.

I hope someone could help me get this going

Thanks in advance

Alex

Can somebody help me out with this?
Thanks in advance

Best regards,

Alex

Fixed, the ID of the dataset was wronlgy defined