How can we approve expense reports from Concur mobile app.
YOU can look at Concur help, and youtube works well too.
Using Concur Mobile to Approve Requests or Reports
Those with approval rights will see an Approvals option on the SAP Concur mobile home screen. There they will be able to open reports pending their approval to review them and approve them.
Are you working in a role as an approving manager, or as an expense processor (accounting/finance)?