High-level design doc review (Product Manager) - Add an optional test receipt and test "boss" to receive the expense in the Submit flow

[melvin-bot]

🎉 You have been assigned to review a design doc! Here is the tracking issue for Add an optional test receipt and test "boss" to receive the expense in the Submit flow.

Once you have reviewed the design doc, head over to the master tracking issue and simply press the Add "Reviewed Doc" comment button in the right hand side K2 panel or follow these instructions. After that, you can close this issue as done. Happy reviewing!

[yuwenmemon]

Done-zo