How to control event with unique dataelement value be capture repeatedly?

I want to capture event , to avoid duplication, I want to use the unique event data element such as id to avoid the event to be captured repeatedly, how to do this?

Hi @lin_xd,
If you need a unique ID for your events, I would suggest using Tracker capture for data collection and using an attribute as the unique id. You will create an attribute make it unique in either system or OrgUnit and assign to the Program.

Let us know if this was helpful.
Cheers,
Emma

I want up this post. Is it possible to have unique value in a repeatable stage ? Maybe with program rule ?

I think It’s useful for specifying an element with unique value to avoid event be imported or registered dupulicatly.