How do I know who's seen my match invites?

On your home page the first panel shows your invitations for each event (e.g. league/friendly etc). For each there are 3 possible coloured indicators:

1. A blue counter tells you the number of invites you have issued
2. A yellow counter tells you how many invites you could accept
3. A green counter tells you how many people have seen your issued invites

The last one, the green one, gives you a rough idea of the number of people who have had the opportunity to take up your invites. By opportunity we mean that they have been into their home screen and seen that they have yellow invites waiting for them (some of which would be yours).

Click on the green counter and you'll get a list of who those people are. This gives you a rough aggregate of the people who have been exposed to all your invites.

Click on one of these events and you get a window that lists each individual invite. Here you can accept invites from other people, for example. You an also click on the question mark (?) button against each invite to see an analysis of who has seen this invite. The analysis consist of a list of everyone that is included on the invite but broken into three sections as follows:

1. Green rows indicate players who have seen the invite
2. Yellow rows indicate players who have not seen the invite
3. Red rows indicate players who have rejected the invite

Not only can you get this analysis on your invites but also on those to which you are being invited. It's a handy way to check who knows about your invites and who's also being invited to others.