Install the Open Purchase Requisition Processing App.
- Search for ‘Open Purchase Requisition Processing’ in the Marketplace to find the app. Click on the app and the blue Installation button will display at the top.  
- This is the target space where the app will be installed. You can create a new space or use an existing one.  
- You will be automatically prompted to input the variables needed to properly execute the app.  
- For the Open Purchase Requisition Processing case, you will only need to update the following variables: - Data Model Key: Assign the data model variable. Select the Purchase Requisition Data Model. 
- Currency (plain text): Assign the ‘Plain Text’ variable. This can be a 3-digit currency like EUR, USD, GBP.