How to temporarily show messenger text composer to allow user input some text?
In my case, I want to allow a user to pass some item name.
The persistent menu docs: https://developers.facebook.com/docs/messenger-platform/send-messages/persistent-menu
You can not change persistent menu specifically for any user. If you turn on your composer, it will turn on for all the users. You can alternatively, turn the composer on by default and keep ignoring messages if not necessary.