First of all, it should be understood that a wedding communication plan is necessary in any case - regardless of whether there will be only 30 close relatives and friends or several hundred guests at the wedding.
The situations can be different - on the morning of the wedding, the guests must be informed about unexpected changes in the wedding scenario, about the repair of the road to the venue of the celebration or anything else that the wedding guests must be informed about.
If at this moment you thought that you can get by with a Facebook group for all wedding guests, then it will definitely not be the most effective solution.
If the wedding is big, then this duty can be entrusted to several people - members of your families, a group of friends, each of whom will undertake to identify a certain number of guests.
Another important tip - unless you have a wedding planner or coordinator to take care of it, find one from your acquaintances, friends or wedding guests. These can be ushers, witnesses, bridesmaids or someone you trust and know will coordinate everything and you won't have to send messages to all your guests on your wedding day or worry about someone not being informed about something.
Your only task is to think about each other and what you will say to each other that day.
When announcing any changes or clarifications/additions to the wedding scenario, it should be remembered that the message should be short, understandable, without unnecessary explanations and with instructions for what the guests should do in the given situation.
One of the most effective solutions for transferring information to wedding guests is still your wedding website. It can contain all the information included in the invitations, a map to the wedding venue, a list of desired gifts, a list of things to take with you, or anything you want your guests to know.
If you have created a wedding WEB page, make sure that it is regularly updated with the latest information or additions and clarifications, if any.
Although you have sent out wedding invitations, you should expect that guests may have already lost them, so the trend shows that visits to wedding websites usually increase before the wedding - guests are looking for information on where and when they should arrive.
Of course, there are other applications that can help you communicate with wedding guests. Each couple finds the most suitable solutions for themselves, also looking at the age of the guests and the virtual tools they might use (the grandmother may not use Facebook , but the ten-year-old goddaughter may never check her e-mail).