how often can i invite friends to like my page?

[murcuky52]

I've invited friends to like my page a month or so ago.. Now i am trying to invite them and the ticking is inactive.
I have another page, I sent invitations long time ago, and I can send invitations again now.
Why is that? How many times can i invite friends to like my page? How Often I can do this? Is there time or any other restrictions to send an invitation once again?

[Louise]

You can invite them whenever you want, there is no restriction