Automatically message new followers—how to change it?

I have a business account and at some point in the last few weeks, there was an option to set up a message to new followers automatically. It also allowed me to include a button that would navigate directly to my TikTok shop. I set this feature up in TikTok directly, but now I cannot for the LIFE OF ME figure out how/where to edit the message.

I did not use a third party software like ManyChat. This was directly in TikTok. Does anyone else know what I’m talking about or how to edit this?