If an approver cannot view the receipt attached to an expense in Portal or back office, this is because the receipt document name is causing an error. Check if the document name contains any special characters such as - / [ &.
To resolve this, follow the steps below in back office.
Click Core Expense, then click Enquiry.
Click Expense Trip Enquiry.
In the Expense Group, enter the expense group.
Press Tab through all the fields on your keyboard.
Highlight the trip ID, then click Claim Detail.
Highlight the expense, then click View Receipt.
Download the receipt and ask the employee to withdraw the trip submission.
Rename the file to remove any special characters.
Re-upload and resubmit.