To activate the Task Gateway service, proceed as follows:
In the SAP Gateway system, start transaction SPRO.
Choose SAP Reference IMG.
If your system is based on SAP NetWeaver 7.40 or higher, choose.
Select the Activate and Maintain Services activity.
Choose Add New Service. The Add Service screen is displayed.
In the System Alias field, use input help (F4) and select the system alias you have created.
Press Enter. The Add Service table is populated.
In the Technical Service Name column, double-click /IWPGW/TASKPROCESSING. The Add Service screen is displayed.
Copy (or make note of) the name that is displayed in the Technical Model Name field. You need this to assign the software version to the service.
In the Package field, enter the package to which you want to assign the service for transportation from one system to another. If you do not want the service to be transported, enter $TMP as the package name and the service will be created locally.
Choose the checkmark. The Activate and Maintain Service screen is displayed.
In the ICF Nodes section, ensure the ODATA node status is set to Active.
In the System Aliases section, ensure that the correct system alias is displayed.
After you have activated the service, you can navigate to the Task collection to get all your inbox tasks from the implemented providers such as SAP Business Workflow and SAP Business Process Management (BPM).