pairing unsuccessful imac is not support
pairing unsuccessful says imac is not support, can't airdrop to or from iphone 14.
iMac 24″, macOS 13.2
Question marked as
For AirDrop, Bluetooth must be on but the devices are NOT paired.
If AirDrop is not working, see the "If you can't see the other device in AirDrop" section and other information in Use AirDrop on your Mac - Apple Support
Other information related to Bluetooth pairing a Mac and iPhone:
See the information in: Bluetooth: Why can't I pair my iPhone or … - Apple Community
If you are attempting to use Handoff/Continuity or AirDrop, that does involve Bluetooth but the devices are NOT paired; Bluetooth just needs to be on and the devices in range of each other. The following may help with Handoff/Continuity issues: Use Continuity to connect your Mac, iPhone, iPad, and Apple Watch - Apple Support
Also see Share files between your Mac and Bluetooth devices - Apple Support