---
title: "Additional Property as User Provided ID"
canonical: "https://support.passcreator.com/space/KB/890241025/Additional%20Property%20as%20User%20Provided%20ID"
format: markdown
---
You can specify a pattern if you want to fill your User Provided ID with values of additional properties.  
This pattern can be used with Strings and/or placeholders.   
***This pattern should result in a unique identifier otherwise you won’t be able to identify the pass properly!***

![image](media://bafeed27-0bc5-4ab9-a983-25ae4d1d0e59)











Then, you can create new passes that will include this ID, based in the placeholders you have defined:


![image](media://979725c4-5ccb-43d5-9a3c-1bd5e8322749)