How to handle an empty collection

[Rosamaria_Cabrera]

I have a Monday webhook that looks for changes on a file column. I need to see if a file was added, so I need to check if the new value collection files array length is greater than the previous value files array. But the previous value might be an empty collection because there were no existing files.

No existing file

With existing files

With this filter, if the previous value is empty, it does not execute the following module.

What can I get this to work?

Thanks!

[D-EFFCON]

Leave that filter, and add an OR statement where current value files array is greater than 1 and previous value files doesn’t exist

[Rosamaria_Cabrera]

Thank you. I will give that a try.