After a trip is over, can the system give the traveller the receipts they need for their expense claim?
Yes, for everything that was booked through the portal the paperwork is already there and can be sent to the traveller or pulled up by them without anyone digging through email. The flight ticket, the hotel voucher and the invoice for the trip sit against that booking, so a traveller who needs to file a claim can download the lot in one go, and a finance team that queries a line on a statement can be pointed at the same documents.
What you get depends on the product. Air tickets carry the fare breakdown, and a hotel booked and paid through the portal produces an invoice from your agency for the amount the company was charged. Where the traveller pays the hotel at checkout instead, the receipt comes from the hotel front desk and not from your system, so the portal can show what was booked but cannot produce a paid receipt for money it never handled.
The same is true for anything spent outside the booking, such as taxis, meals or a bag paid for at the airport. Those never touch the portal, so the employee still has to collect them. Some companies handle this by exporting the portal records into whatever expense tool they already use, and whether that export is available in the shape their tool wants depends on your plan and on the tool at their end, so it is worth checking rather than promising.
When you take on a corporate account, ask their finance team early what a claim has to look like on their side, and agree which receipts will come from you and which the traveller is expected to bring back themselves.
