first of all, for Gifting bundles and gift battel pass warzone through the game store, you should activate the Activision 2Fa (two-factor authentication) to protect your account and enable in game gifting ability. It also gives you two 1 hour double battle pass XP tokens.
How To Enable 2FA For Call Of Duty Activision
- go to www.callofduty.com
- click on the login option
- enter the same Email info that you used in Warzone
- now your account name is visible, click on that and open basic info
- now, from the left side options, open the privacy and security tab and then click on Enable two Factor Authentication
- (The COD website would send a code to your Email, and you should enter that in the COD website.)
- step6: do the rest of the steps according to www.callofduty.com introduction. And while you see this message, it means that now you can gift bundles in Warzone for your friends