Application modules
Markettai can reply on its own to anyone who comments a specific word on your Instagram. It is what you use for campaigns along the lines of "comment INFO and I will send you the price".
You define the word and the two replies: the one published as an answer to the comment, in plain view, and the one sent by private message to that person. The private message can include a link, for example to the page where they leave their details.
The rule can apply to your whole account or only to one specific post, whichever suits you.
For it to work you need Instagram linked to your Facebook page (see «Permission warnings on your Meta pages»).
Something not working? See «How to tell where the problem is».