Shared Pass value is activated in your primary account (you cannot play third-party games with your primary account, such as CoD).
Activation method:
Enter the Microsoft program, sign in with the account, and reset the Xbox app. Then you will get two options. All you have to do is click on "Keep current settings" or "الاحتفاظ بالإعدادات الحالية".
Important warning:
Changing account information, such as password, email, or even display name, is strictly prohibited. If any of this information is changed, the account will be withdrawn and you will not be compensated.