PO history status reserve

Dear Guru

I do the step

1.Set up employee sysadmin

2.Assign position  and approval limit

3.Set Approval limit in the group

4.Set user login and employee

5.Run fill employee hierarchy

6.Create PO and I submit approve the PO and status in action history is reserve. Why doesn't keep approve status in the action history?

Or how to fix this? Or is this standard the program working well?

Could you please, help me for this case kha. I don't know that is the program work normally or not kha.

Rdgs,

P.R.