On the TimeTracker mobile app, the details added in the additional fields of Expenses like Vendor Name, Vendor City, Vendor State, etc., are getting submitted to Salesforce upon saving. But, when you get back to the Add Expenses screen again, the details that you entered in the Vendor Name, Vendor City, and Vendor State are not cleared from the previous entry.

As a workaround, please click the go back button and click the expenses tab, to clear the details in the Vendor name, Vendor City, and Vendor State and you can add details for the next expense entry.

This is a known issue in the PK4 TimeTracker application and will be fixed in the upgraded version of the TimeTracker application.