>Hi everybody,
>
>This simple phrase got us stumbled for a while and we had to switch to a different word.
>
>How to say correctly:
>
>There are no attendance's for this Event.
>
>The final phrase we used is
>
>There are no Participants for this Event.
>
> BTW, I'm thinking - is FOR a correct preposition here?
>
>But how to say using "attendance" word?
>
>Thanks a lot in advance.

It depends on the timing of the event. If it already happened, you would say "There were no attendees" or "There were no participants." (In that case, who would know? <g>). If it's being canceled because no one signed up, you would say something like, "This event has been canceled due to a lack of participants."

Yes, for is a preposition there.

The apostrophe should not be in "attendance's." It is a possessive, i.e. something belonging to attendance, i.e. gibberish.