Ofcourse the usual way. Send as gift and hit "Accept Game Gifts" from dispenser dashboard. And the bot accepts it. It worked just fine at first I was able to sell it for trade but then after few days I removed it from the market then kept in the bot inventory. But after a while I check back it's unsuable from the inventory for either sell or withdraw.

PS: It's kinda odd you don't know. Or you just forgot how it used to worked I guess.

I just did send as gift recently, March 20 to be exact. The bot accepted it normally as usual with confirmation notice and appeared on the bot inventory and I was able to list it on the market as untradeable payday 2 gift but I have removed from the market 2 days after and kept on the bot inventory. Checked again yesterday to withdraw it it's both unusable from sell or withdraw. If the bot shouldn't accept them then why does even the "Accept Game Gifts" botton still exist and why it accepted it also?

Anyway, can you kindly send it back to me?

Nothing has changed, gifting does not effect any existing gifts prior to the new rule and same goes for the trading rules for existing gifts. You can send as gift or as trade. Existing four pack gifts creates untradable gifts once unpacked but they're not part for new rules so they can still be send as gifts as until tradable after 30 days. That's why and how dispenser bot handled them as it used to.

I just remembered I sent three untradable payday 2 to the dispenser bot and it accepted all three and I also withdrawn one and the bot sent it as gift too, that was after few days and it worked just fine. Dispenser.tf still knows how to handle them as usual. I think it would be better to try it yourself so you can understand how dispenser.tf bot works when accepting gifts. Wouldn't that be better than wondering? you can use my untradable payday 2 as test but send it back to me afterwards.

Untradable gifts can always be sent as gifts that's the bottom line. I would have asked dispenser.tf bot to withdraw it for me but it wouldn't all of a sudden as it became unsuable state from the inventory.

Is there any update? or when you'll make change? I still cannot withdraw it from bot inventory. Maybe can you just manually send it back to me if updating takes time.