You can upload your supplier invoices, or payment slip made by your bank onto SimpanKira.
Adding Attachment to Receipt
Find the orange button 'Attach Document' at your receipt page.
Click the button and it will pop a modal. The modal will ask you to select the file that you want to upload. Then click Upload.
Once the file is uploaded, a link will be generated and it is located below the purchase invoice. The link will also have a delete icon to remove this attachment.