When mapping the billable field for the GL destination, you cannot use the entry_billable mapping because the billable checkbox is not naturally a field that shows up for GL entries. Therefore, you have to map it as a billable field like so:
- Custom11 is replaced with whatever custom field the client is using for their billable flag
- Yes could possibly be replaced with Y depending on the Concur language that comes through for that customer
- 'true' and 'false' could potentially be replaced with 'T' and 'F'