How to send MP3 files via Instagram direct messages ?

I need to send an AI-generated MP3 audio file via Instagram DMs, is that possible?
Let's forget about using a link with WeTransfer or other services. I tried from my computer, the sending works, but it seems that the sound doesn't play on mobile afterwards. Do you have any tips?

All good, I figured it out myself, just need to use ManyChat by creating a chatbot that automatically sends voice messages in Instagram DMs.

Instagram does allow you to do that, however, only API software's can do that. If you want a real device software to do that, you will have to get someone to code it for you, since that is a special action that is not coded in most real device software's out there.