The Expense data integration is unidirectional (in other words, from Expensify to SAP Business One). On creation of an expense under a category in Expensify, the expense selected in Expensify integrates as A/P Invoice (service) in SAP Business One. The expense belonging to group policy which is used at the time of deployment will only be integrated into SAP Business One.
Note
The email id of the employee in employee master data in SAP Business One should match the employee email id in Expensify. The Business Partner master data code should be vendor, and the Business Partner type should be an employee. This employee should be linked to the vendor.