How cumulative mileage is calculated is it based on the expense item date or expense payment date?

Hi Team,

In our project, we are required to migrate the cumulative mileage data for the current year from Oracle EBS to Oracle Cloud & the client has raised the point that Mileage data needs to be based on the date of claim i.e. the date the person travelled, not the date the claim was paid to ensure only mileage travelled in the current tax year is migrated.

Therefore, the question we have is how cumulative mileage is calculated & displayed on the cumulative mileage screen, is it based on the expense item date, expense submission date or expense payment date?