Dual SIM on iOS 27: Here’s where Messages keeps the Conversation Line setting

With Dual SIM on iOS 27, the setting that picks which number a Messages conversation uses is called Conversation Line, and it sits in that conversation’s details. Open the conversation, tap the contact or group icon at the top, tap Conversation Line, then tap a line or alias. iPhone 18 Pro. Image: Apple Apple’s iOS 26 guide gave a different route:...