Coworkers haven't Rsvp'd

Are they mailing the cards in? If so it could take up to a week to get in the last few stragglers that were mailed late.

Otherwise I would treat them just like friends and family that have not rsvp'd yet. Give it a few days and call or text them asking for a response asap and give a deadline. After that you can mark them as a no. If they say they can come after the deadline let them know that it is too late and the final numbers were due to the venue/caterer already. It's on them for not rsvp-ing on time.

Most of my co-workers responded literally the day of my RSVP deadline and some people are such laggers you have to follow up with after.

I would politely ask them if they had a chance to return the RSVP when you see them at work. Some will legitimately have returned it late and they are on the way. Some will have forgotten to return it. And some need a gentle reminder that weddings take planning and money. Good luck!

A friend of mine getting married in October had to hunt one of her coworkers down because he was the only one left at work that hadn't RSVP'd I would assume if you invited them to your wedding, you're close enough to be upfront with them. I would just say "hey I've been going through my RSVP's and I didn't see yours, have you filled it out? Just want to know if you'll be able to make it so we make sure to have a seat for you!"

I would just simply ask them and tell them that you haven’t received their RSVP and tell them you final count is due in a week or whatever time frame.

Stop by the coworkers desk and politely ask if they'll be able to make it to the wedding. If they say yes then just ask them to fill out the reception card and hand it back to you. Most of the time people just lose their invitation and don't want to ask you for another one or they can't come and think that not responding takes the pressure off of them having to say no to your face.

I agree with ppl. If you're close enough to them to invite them to your wedding I would just politely ask if they've had a chance to mail in the RSVP yet. You could also simply say you are trying to get a final head count for your caterer