Add-in is failing to trigger event-based activation events first time user logs in a new browser

[manaunl]

Provide required information needed to triage your issue

Add-in is failing to trigger event-based activation events first time user logs in a new browser

Your Environment

• Platform [PC desktop, Mac, iOS, Office on the web]: PC desktop, Mac
• Host [Excel, Word, PowerPoint, etc.]: Outlook
• Operating System: Windows, Max
• Browser (if using Office on the web): any

Expected behavior

EBA events (OnMessageCompose, OnMessageRecipientsChanged, OnMessageAttachmentsChanged) are triggered for the add-in everytime.

Current behavior

EBA events (OnMessageCompose, OnMessageRecipientsChanged, OnMessageAttachmentsChanged) are triggered for the add-in only after reloading the page.

Steps to reproduce

1. First time login with the user in a new browser
2. Click New email
3. Validate if the OnMessageCompose event is triggered
4. Add recipient or attachment
5. Validate if the OnMessageRecipientsChanged or OnMessageAttachmentsChanged events are triggered

Link to live example(s)

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2. ---

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Provide additional details

• Additionally, the task pane is not working as described in the ticket Some addIns are not opening the task pane #5512
• The issue is intermittent and can be reproduced only for specific users

Context

Useful logs

• Console errors
• Screenshots
• Test file (if only happens on a particular file)

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[github-actions]

Here are some similar issues that might help you. Please check if they can solve your problem.

• Event-based activations not triggered on Outlook web client add-ins #2839

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Possible solution (Extracted from existing issue, might be incorrect; please verify carefully)

Solution 1:

Event based add-ins are currently supported for commercial accounts as they are only available as part of admin deployment. Supporting event-based activation for user acquired add-ins is on the road map and we will consider this as part of that requirement. We don't have an ETA for this yet.

Reference:

• Event-based activations not triggered on Outlook web client add-ins #2839 (comment)

Solution 2:

We have fixed the bug and the fix should be available in Production now.

Reference:

• Event-based activations not triggered on Outlook web client add-ins #2839 (comment)

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[manaunl]

This issue is blocking our add-in functionality, as event-based activation is a crucial component. Please provide guidance on resolving this or let us know if a fix is in progress.

[MatthewLowden]

Hi @exextoc,
It appears that this additional regression is introduced in the same failed change that introduced
#5512
Please can you confirm that you will abort this roll-out and revert this change?

[rickgoud]

Wow...just wow... @exextoc and Microsoft team. How can it be that these type of fundamental issues are not discovered in QA? Can you please set up a program that will prevent these fundamental issues. Add-ins not loading and Events not working are the core of your M365 add-in strategy.

Please, please give this high prio and show to the community you take quality seriously!

[arpitsangwanmsft]

Hey @manaunl!
We haven't been able to repro this. Can you please share logs for repro scenario following these instructions.
Please share TenantId in the same private repo if possible.

Thanks

[Oleg-O]

So far, unfortunately, multiple people here have not been able to reproduce these issues using their own internal accounts in earlier rings as well as test accounts in production ring. Nonetheless we are treating this report (and #5512) with importance and we're actively looking into this.

[manaunl]

Hi @arpitsangwanmsft , @exextoc I have shared a private repo with you.