Column "A" is a yes/no checkbox field. If it is checked/yes, I want to make it required for the user to attach at least one file to the item.
I'm trying to write a formula to place in the list's validation settings but I dont know what name to use for the attachments field (it may even be a field in a SP sense)
=IF([A]=TRUE,IF([**Attachment field name goes here**]<>"",TRUE,FALSE),TRUE)
The above formula should work if I have a valid name for the attachments field. How do I get around this?