You can upload receipt images and other attachments to the expense form as the following file formats:

jpeg, png, gif, heic, heif, pdf

The file can be a maximum of 10MB in size and a maximum of 1000x1000 px in dimensions.
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It's also possible to upload attachments to the Per Diem and Mileage forms after you have completed all the information on the form and clicked "Submit" and refreshed your browser. Attahments of the Per Diem and Mileage form can be a maximum of 10MB in size and be of the following file types: jpeg, png, gif, pdf, doc, docx, xls, xlsx.