# Workflow

## How to Add Process Variables

| ### What to do:
| As a prerequisite for the following example you must have completed the examples Add and Connect Components and Create Process Variables.
| Please note that process variables can only be added to process templates and ad-hoc processes!
| Don't use process variables of the type MONEY!
| Open the Purchase Requisition process in the Workflow Editor.
| Click the Process variables tab in the Workflow Components section. All available process variables are displayed.
| Add the process variable Attr1 to the Grapher View window.
| Select a connection line from the Process Variables tab and link the process variable Attr1 with the activity Create.
| For additional information regarding the properties of individual connection elements, please refer to Key Features > Process Variables.
| To save the entry click .
| The process variable Attr1 is now assigned to the activity Create.
| A process variable can be assigned to more than one activity!
| Process variables can be moved for easier viewing. However, these changes are not permanent, since process variables are automatically arranged upon opening of the process!