Question:
What do I fill into REFERENCE field to create a Send to Messenger plugin Growth tool?
Answer:
You can add any text on the reference. It must be unique.
The best practice is to make the text meaningful to you so you can remember it and lessen the possibility of duplicate reference in the future when you create another send to messenger growth tool
Example References:
MyGrowthTool
HelloReference
ThongChiwah
NewYear
WhatEver
Etc. etc.