How to send message using Organic Groups Invite? I am trying to use the Organic Groups Invite module along with the Rules and Message modules to send a message to users containing an option to accept or decline an invitation to a group.

I have set up rules to send a message to the user when they are invited. This all works perfectly, however the message does not contain the accept / decline options that I assume come with the Organic Groups Invite Module.

I am new to Drupal, and since this module has no documentation, I wonder if anyone could help me out with adding the accept / decline option to the message.
Not sure if it is an option you're willing to consider, but the OG Invite People module might be used as a possible alternative for send such invitation to a group. Here is a quote from its project page:

... adds the missing email invite functionality for OG 7.x-2.x.
When you click on &quot;Invite user&quot; a user is created and invited to the group right after. No registration process is needed. Invitee receives an email with one-time login link.