Hi @Evelyn-Jiang,
Could you please tell me that how you create this User_selectedUser?
Do you set the people picker only with the DefaultSelectedItems property?
I think you should set the Update property of the people picker as below:
{
Claims: "i:0#.f|membership|" & Lower(User_selectedUser.Mail),
DisplayName: User_selectedUser.DisplayName,
Email: User_selectedUser.Mail,
Department: "",
JobTitle: "",
Picture: ""
}
Or the following formula will also work:
{
Claims: "i:0#.f|membership|" & Lower(PeoplePicker.Selected.Mail),// PeoplePicker represents the Combo Box
DisplayName: PeoplePicker.Selected.DisplayName,
Email: PeoplePicker.Selected.Mail,
Department: "",
JobTitle: "",
Picture: ""
}