Outlook's Send to OneNote broken, any ideas?

[phaZed]

I've a client that is set in their workflow and uses the "Send to OneNote" function in Outlook. Recently, this stopped working. When the Send To OneNote button is clicked, the fly-out panel shows but is entirely blank where it should show the notebooks. The same behavior is in both Old and New Outlook.

So, seems like a MIME or Outlook Add-on/Plugin issue? Checked those and the plugins/addins are showing as expected in Outlook settings.
I've both, Repaired/Removed M365 without change - likely a registry path or something? OneDrive is logged in and syncing. OneNote works fine standalone.

Any ideas?

 

[britechguy]

Just in case it covers something you haven't, see what Copilot has to say: [What causes Outlook's "Send to OneNote" feature to constantly show blank content when invoked?]

This seems to be one of those "problems of a thousand possible root causes, often in combination, and where multiple fixes are needed."

 

[phaZed]

This seems to have fixed it for now:
Quick fix (elevated command prompt):
1. Clear the broken keys:
reg delete "HKCU\Software\Microsoft\Office\Addins\OneNote.OutlookAddIn" /f
reg delete "HKCU\Software\Microsoft\Office\16.0\Outlook\Addins\OneNote.OutlookAddIn" /f

2. Re-register the add-in:
reg add "HKCU\Software\Microsoft\Office\Outlook\Addins\OneNote.OutlookAddIn" /v "Description" /t "REG_SZ" /d "Microsoft OneNote" /f
reg add "HKCU\Software\Microsoft\Office\Office16\Outlook\Addins\OneNote.OutlookAddIn" /v "FriendlyName" /t "REG_SZ" /d "OneNote" /f
reg add "HKCU\Software\Microsoft\Office\Office16\Outlook\Addins\OneNote.OutlookAddIn" /v "LoadBehavior" /t "REG_DWORD" /d "3" /f
reg add "HKCU\Software\Microsoft\Office\Office16\Outlook\Addins\OneNote.OutlookAddIn" /v "Manifest" /t "REG_SZ" /d "file:///C:\Program Files\Microsoft Office\root\Office16\OneNote16.olb|OneNote.AddIn" /f

3. Restart Outlook.

We'll see if it holds.

 

[lan101]

Just in case it covers something you haven't, see what Copilot has to say: [What causes Outlook's "Send to OneNote" feature to constantly show blank content when invoked?]

This seems to be one of those "problems of a thousand possible root causes, often in combination, and where multiple fixes are needed."

I've had chat gpt solve some things for me that I don't believe I would've solved otherwise on my own. One of my computers itunes wasn't syncing correctly and just causing certain things not to work. I tried different things on and off for a few months and nothing worked. Went to chat gpt and it had something in there about updating root certificates and that ended up making all work well again. Nothing else on the web even pointed that out as a possibility that I ran across.

 

[phaZed]

I've had chat gpt solve some things for me that I don't believe I would've solved otherwise on my own...

I've started running all my AI locally - Got a Asus GB10, My 5090 - and Hermes Agent using Qwen. Yeah, invaluable for such things.

 

[britechguy]

As far as I'm concerned, using AI chatbots with well-formed prompts has been game changing. What often took me hours to days to, on rare occasion, weeks to locate now tends to be revealed in moments. I will often give the same prompt to at least 3 AI chatbots and very often each will present some information that does not overlap with the others. The overlapping stuff also tends to be the "in most cases" fixes that one should try first.

 

[Metanis]

...well-formed prompts...

Exactly! Our experience as techs will always be helpful to knowing what to ask and how to structure the questions.