- Open Engineering > Project Overview (Project Overview).
- Click on a project in the table and open the Settings tab in the project details.
The overview of the existing OPP assignments is displayed (Settings Tab).
Only assignments of type OPP can be created.
- Click
Add Mapping. The Add Mapping dialog window is displayed.

- Enter the freely selectable Name of the mapping.
- Select the Domain for which the assignment is to be created from the drop-down list.
- Select the associated Event for the selected Domain from the selection list.
In the current module version of Nexeed Engineering, all events are displayed in the drop-down list.
- Select the desired Activity from the drop-down list to be assigned to the previously selected Event.
In the current module version of Nexeed Engineering, all activities are displayed in the drop-down list.
- Use
to specify whether the mapping is to be defined as the default. - Click Next.
The second page of the Add Mapping dialog window is displayed.

- In the Request Message section, enter the Source Field and the Target Variable.
- In the Response Message section, enter the Source Field and the Target Variable.
- Click Save.