1. Go to File - System Option - Purchase(1)- tick 'Must get approval in Purchase Requisition',Get Approval Option is up to user - Apply - Save
2. Go to File - General Maintenance - Purchase Requisition Control Level - Set for the User code who is the 1st level Control /2nd level control in PR approval - Apply - Save.


 After that, Login as standard user - Go to Purchase Requsition - Issue PR and select 'APPROVAL' tab -


Request by: is the user who login to QnE and want to get approval from 1st/2nd level control and issue PR.
Asking Approval from 1st/2nd level Supervisor:Based on the setting in System Option.


 
If System Option set 'Either 1st or 2nd level supervisor approve', then only one of the supervisor is able to  select.


else;                                                                            

If System Option set 'Must have 1st and 2nd level supervisor approve', then need to select a supervisor who is 1st level supervisor and a supervisor who is 2nd level supervisor that set in the Purchase Requisition Control Level.