Navigate to the project where you want to upload receipts, tap the Receipts tab, then tap Add Receipts.
You have two options:
Take a new photo of a physical receipt with your phone's camera
Upload existing images or files from your phone's gallery or file storage
You can upload receipts one at a time, or select and upload multiple at once for a faster workflow.
Read the full article: How do I upload receipts using the FlipperForce mobile app?