Moving items from one group to another

THayes2000

In my Organization, I have 2 Groups. I am the Administrator. Is it possible to move items from one Group to the other Group?

My goal is to eventually delete one of the Groups due to the fact I require a new Username. I read it is not possible to change a Username. Once it is created it stays. 

Can you tell me how this can be done?

JayantaPoddar

You could uncheck sharing the items with the "old" group, and check for sharing item with the new group.

Share items—ArcGIS Online Help | ArcGIS 

You can change your First Name and Last Name without changing the UserName.

Else, if there is room to create another user account, you could create one with the desired username, grant it Administrator privileges, and move the items created by the administrator. Then, you could delete the older User Account.