Fire the workflow if Today() is = to [Timestamp] in Related List

[Scott_Hall]

I have a table of Collection Events where each collection event is later assigned a Disposal Event. (There are many collection events associated with a single Disposal Event)

I’ve been unable to solve the expression needed to fire a workflow from the Collection Event table if in the associated Disposal Event table the [Timestamp] column = Today()

All I’ve been able to come up with is something like:

IN(Disposal Event), [Timestamp]= Today())

Any thoughts? Thanks in advance.