Settings for Time Management Application - OData Channel
Time Management application enables you to perform time recording functions while away from your desk in any device or platform.
Prerequisites
Configurations for Time Management
Configurations on the SAP ERP System (Provider System) for Time Management - OData Channel
Configurations on the SAP Gateway System (Consumer System) for Time Management - OData Channel
Reference
For more information, see SAP Library for SAP ERP on SAP Help Portal at http://help.sap.com/erp.
In SAP Portal,
SAP ERP 
SAP ERP Central Component (Open the documentation) Expand SAP ERP Central Component Expand Human Resources Choose Personnel Time Management 
.