How long do conversations in group channels remain on the server?

I would appreciate it if you could let me know how long conversations I had on a group channel will remain on the server unless I delete the channel.

Hello @2_2.

Message retention is 6 months or 4380 hours. After that period of time, messages are hard deleted. If you need a long message retention period, you can reach out to our Sales team.

Thanks,
Tyler