​@samar It's possible, but I don't recommend it. It gets messy and difficult to maintain, and if you have subscribers that are on more than one channel (IG and WhatsApp for example), it's prone to breaking.

But if you want to do it, add a condition at the beginning that checks whether they're a IG/Messenger/WhatsApp subscriber.

Hey, ​@samar! Yes, you can build one automation to work with Instagram, Messenger and WhatsApp. However, I don’t recommend it (you can have some errors with this solution).

You can convert your automation to the channel you want and make some adjustments.

Go to your automation you created → click on the 3 dots → select convert channel → choose the channel you want to duplicate your automation.

Here’s a help article that you can read: https://help.manychat.com/hc/en-us/articles/14281167702428-How-to-convert-automation-to-another-channel

Let me know if this helps