How to pin a message thread in ios16.2

Hello lilysgrandma,

Thanks for reaching out to Apple Support Communities. Check out the steps below to pin conversations:

"

1. In Messages, tap Edit or the More button .
2. Tap Edit Pins , then tap the Pin button .
3. Tap Done.

You can also touch and hold a conversation to pin it. In iOS 14 and iPadOS 14 and later, you can pin up to nine conversations."

You can find those steps in the following resource that will help to ensure that you're taking the proper steps to pin a conversation in your Messages app.

Use Messages on your iPhone or iPad - Apple Support

Hope this helps,

Cheers.