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Update Event (v2) to send updates 'only to new attendees'

When i update an event in outlook to add/remove attendees i get an option to send this update only to newly added attendees:

Outlook meeting update prompt.PNG

This makes sense because i can send the update only to new attendees as opposed to sending invite to all attendees. 

I was expecting similar outcome from FLOW's Update Event (V2) action however this action always sends update to all attendees. I suggest updating the action to either provide an option or handle the parameters in such a way that if only attendees are updated then send the update to newly added attendees only. 

Status: New
Regular Visitor

This is the missing link in my Flow that I have been looking for.


Couple of users have been requesting this.

Is this feature planned?

New Member

Update Events is now on V4 and still this issue remains.


In the meantime, here is a possible workaround

Regular Visitor

This is critical. I'm using Power Automate to handle over a hundred invites to almost 800 people. Each time someone signs up, everyone gets the invite again - it's crazy!

Advocate I

@Naveen - I'm working on a global event scheduling project that desperately needs this feature. How can we escalate this request? 

Not applicable

Hi, we have an internal webinar series that users register to that requires this option, as it keeps sending updated event details to people who have already registered. Can this be please escalated, thanks


This problem still exists in Update Event V4. My customer is becoming irate with this longstanding known issue. @Naveen, any updates from the team about when this might get fixed? 

Regular Visitor

Hi @Naveen @MHolzmann @Anonymous @JeremyJacobs @GRippingale 


I just posted an answer in a similar post:


I figured out a workaround. Basically it involved forwarding an event rather than updating an event.


It's a bit cumbersome but it I found it to work i.e. an email invitation went out to new people only.

  • First create your events in Outlook. It helps to give them a common subject line e.g. "Training: Power Automate", " Training: Excel" etc.
  • Invite someone to these events (this could be your personal email or a colleague).  This is so you know what event to forward later.
  • Create an Excel file in your OneDrive. Make a table with at least 2 headings: Message ID and Subject. 
  • Now create a Flow to
    1. Get emails (Outlook)
      • Folder is Sent Items
      • To: the email address you sent the invitations to
      • Subject Filter: your common word such as 'Training'
    2. Add row to a table (Excel)
      • Point to the table in excel you just created
      • Match the Message ID (this is what you will need later)
      • Match the Subject (this helps you identify the email)
    3. Save your flow and run it. Open up your spreadsheet which should now contain a few rows of content.
  • Now go back to your Flow where you are collecting the responses. 
  • Add a condition based on if someone responded to the first option on the form - say 'Power Automate Training on 1 January'.
  • If yes, add the step 'Forward an email'. 
    • Message ID - take this from your spreadsheet for the relevant invitation. In this case it's the message ID for "Training: Power Automate"
    • To: the form's 'Responder's Email'.
  • Keep adding conditions for each form option/event.



Advocate I

Any update from Microsoft on this? Just spent hours implementing a booking system with powerapps to discover it doesnt work in at all the way I wanted it to without emailing every attendee on the event when someone else is added or removed. Unfortunately the workaround above isnt suitable for me

Not applicable

I'm creating a booking solutions for trainings and sending out emails with ICS Attachments is cumbersome. Sending real invites with the capability of handling the RSVPs as well would be extremely helpful! However, sending out each booking update to all users is just not acceptable. Please add this feature already!