Web : validasi data if alredy exists with RichWidgets\List_BulkSelect

Dear All Master Outsystem,,

Please help mi,,

How to validate selected, If the data is already available,
Then the data will be updated with specific criteria

I am using a temporary table,

Hi Hot,

Unfortunately, I don't understand what you're asking. Could you provide some more information on what exactly you want to know?

Dear Kilian,

I want to check for duplicate data before it is stored

But what's the temporary table for?

Kilian Hekhuis wrote:

But what's the temporary table for?

For temporary tables I have three tables like the following picture,,

Yes, but my do you use them for?

I want to  create a custom widget