Automating outlook calendar invitations

Hi all, I'm very new to VBA and am aiming to automate outlook 2010 calendar and email integration.

I would like to create a button that sends out calendar invites to a large number of recipients with different specific meeting details (date determined by spreadsheet and other details standard). I'd expect that this would populate a specific shared calendar (not my personal calendar) for managing these appointments. It would be good to avoid duplicate correspondence (eg via drop-down list or checkbox).

I've looked at lots of advice in this area and created buttons testing a few codes provided in forums, but have not been able to make these work correctly. As low on time and local expertise, I'm hoping there is an easy template I can adapt and specific advice to learn from. Attached is a simple excerpt of the spreadsheet I'm seeking to automate.

Thanks for your advice!
K