Meeting delegation Microsoft Teams

Super quick post how to setup delegation for meetings with Microsoft Teams.

The easiest way is to allow Outlook to configure delegation.

File –> Account settings –> Delegate Access

Add your delegate. In this case we will be using guy1.

Once delegation is set in Outlook have your delegate open your calendar and simply create a Teams meeting.

The recipient in this case test 4 gets a meeting invite “on behalf” of guy2 from guy1.

Unable to create Skype meeting from Outlook on a MAC

Are you a MAC user? Do you also happen to use Skype for communication? Are you trying to create a Skype meeting from Outlook and getting an error? Is the message “To create the online meeting, sign in to Skype for Business (Lync) and try again” ?

Well there is a simple fix for this.:

On the MAC desktop go to Security & Privacy –> Privacy –>Automation. In the Automation box should have some apps listed. If you scroll down to the SFB app it should have Outlook underneath it. Make sure that box is checked. You may also want to log out of Skype and Outlook and back in and test. This should now be resolved.

Skype for Business / WAP 2019

Recently I assisted a customer that had removed TMG from their environment and installed WAP 2019 for the reverse proxy. As we all know mobile devices are being used more and more in corporations and with security being a big concern its time to get some of the older technologies updated.

The issue was not with the installation of the WAP server. This issue in particular had to with the Android devices. When logging into Skype the first time everything went as planned. However, when logging out and back in we would see errors stating trying to connect to server and presence stuck at updating….

Reviewing Skype for Business server side logs and client logs we get different errors. The server side logs show a 401 and for whatever reason the client (Droid) was getting a 500. iOS worked just fine.

After some research I found there is a know issue currently with the WAP 2019 server. Server 2019 has HTTP2 enabled by default and this does not support Windows Auth.

To fix this simlpy set to 0 on HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp\EnableDefaultHttp2 on all the 2019 servers and reboot/test.

More information can be found here


Are you trying to install the Skype for Business debugging tools or the Reskit? Are you getting the below error message?

To fix this simply run the following cmdlet:

msiexec /a c:\software\SkypeForBusinessDebugTools.msi /qb TARGETDIR=C:\yourpathhere

You will have to change the above cmdlet to match what you are trying to do and where you are trying to extract it to. Once this is done you should now be able to run the debugging tools or the Reskit.   

Office Web Apps Server

Recently worked an issue with Office Web Apps Server aka OWA or even WAC server. The issue simply was it would not work.

There is not to much to these things. Couple of configuration settings and you are pretty much good to go.

So I checked the basics:

verify you can reach the discovery url from the browser
Collect client logs and server logs
Server components are as followed:

Component: DataMCU
=> Level: Verbose
=> Flags: All
Component: DataMCURunTime
=> Level: Verbose
Component: DataProxy
=> Level: Verbose
=> Flags: All
Component: GraphListener
=> Level: Verbose
=> Flags: All
Component: GraphService
=> Level: Verbose
=> Flags: All
Component: Infrastructure
=> Level: Verbose
=> Flags: All
Component: InternalCommon
=> Level: Verbose
=> Flags: All
Component: LDM
=> Level: Verbose
=> Flags: All
Component: WebInfrastructure
=> Level: Verbose
=> Flags: All

Also have fiddler running while reproducing the issue.

So, once I collected all the logs its obviously time to review. Client logs were showing the following:

<diagHeader>54031;reason=”The WAC presentation failed with a server error.”; There is a few other lines like the url for the OWA server etc.

So Fiddler captures the error and we look at the url its trying to use. There I noticed that the url that was being created was pointing outside my network. I then checked my topology for the Office Web App and where it thinks the server location is:

Well this is not correct. My WAC server is internal. I then proceeded to change the topology and set my Office Web Apps servers location to internal and then published the topology. Once this was done testing proved that it is now working.

Hopefully this will help anyone that is having that “odd: issue.



Deleting corrupt UM call answering rules

  • The call answering rules are also known as ‘Personal Auto Attendants’ (PAA). They are stored as a binary property in a message of type ‘IPM.Configuration.UM.E14.PersonalAutoAttendants’ in the mailbox root’s associated contents table. Here are instructions (with screen shots) to find it:
    1. Using MFCMapi, logon to the affected mailbox
      1. Launch MFCMapi
      2. From the main window, choose ‘Session->Logon…’ from the menu
  • If asked, choose a profile
    1. Note: In my instance, the profile was set to online only – I was not caching the mailbox contents locally

Open the ‘Microsoft Exchange Message Store’ entry by double-clicking it

The mailbox window should open, showing the un-expanded ‘Root Container’

Right-click the ‘Root Container’ and choose ‘Open associated contents table’

In the ‘Display Name Not found (Hidden Contents)’ window, move over to the ‘Message Class’ field

Find the message labelled ‘IPM.Configuration.UM.E14.PersonalAutoAttendants’ Right click on this message and choose ‘Delete Message’

In the ‘Delete Item’ dialog box, you have three options under ‘Deletion Style’

In my lab, I chose the ‘Permanent delete passing DELETE_HARD_DELETE (unrecoverable)’ because I wanted to make sure the commandlets were unable to find the message in my deleted items or similar. The other options MAY WORK, if you want to experiment with them.

PLEASE NOTE: THIS RESULTS IN DATA _LOSS_; all personal UM call answering rules will be IRRETRIEVABLY LOST; please test thoroughly and vette the procedure extensively.

Once you’ve deleted the item, you can close MFCMapi and attempt the UMCallAnsweringRules; they should now work.

For some users in OWA the SFB meeting button is not working

I recently worked on an issue that was somewhat confusing. The Skype for Business button was missing for some users. Not all users just some.

We were not able to narrow this down to just one user, one site or even one pool. It made for a fun time trying to troubleshoot where the issue was occurring. IM and presence were working just fine in OWA too!!

So what did we find? So we started troubleshooting this one as you would any other case with the OWA button. We verified OAuth (even though it worked for some users). We ran and verified the Test-Csexchangeconnectivity this all came back clean for the user. We ruled out the machine by logging in elsewhere, inside and outside the org. We collected Fiddler traces. This opened up a jumping point for us to troubleshoot.

The working user we could see the line “IsUcwaSupported”:true as seen below. In a non-working user replace true with false.

Searching on Lyncdiscover also showed us the following:

{“SipUri”:””,”IsUcwaSupported”:false,”DiagnosticInfo”:”AnonymousAutodiscover_Exception_NoInnerException_Both http and https anonymous autodiscover requests failed with errors (‘’, ‘’)”}

Finally something to use in logging. I then setup CLSlogging and captured on UCWA and WebInfra. Searching on my user(s)  I was surprised to learn that in a non-working scenario there were no hits for the user. However, for the working user we were able to find the following when I put the output into snooper:

As you can see after searching on the AutoD from the CLS logs from a working user  I can see the flow of the request. What we are looking for here is the response back from Autod (Exchange)  “Authorization: Bearer XXXX.” Then we see the various 200’s and we are authenticated. IF you do not see this more than likely you are also getting the above error about AnonymousAutodiscover.

In a non working this would not show as we are not able to capture logging from a Skype perspective.

At this point we need OWA logs from Exchange:

After working with the OWA team more so just to see if we could resolve we found that for the same user was only able to resolve the url on a few servers. We found that the servers that we could not resolve were on different subnets versus the ones we could resolve. As we dug further into this we discovered that this appeared to be an Express Route/Firewall issue.

While we were using Express Route to cover all the Subnets for 0365 this appeared to affect the way the Oauth path/token worked. For the subnets that we had added outside the Express Route this worked perfectly. So we reached out to the Firewall team. After some discussions we pulled out the way the subnets were setup and entered them in outside the Express Route. After we did this we were able to create Skype For Business Meetings inside OWA.


Mac Delegation for SFB On Prem

SFB Mac delegation On-Premises


Recently  I have worked on a few cases where the delegation for MAC is not working as expected. There are a few things that need to be verified before this option is available in the On-Prem environment.


  • Both the Boss (Delegator) and Admin (Delegate) must be enterprise enabled
  • The delegate (admin) must be homed in the same forest as the delegator (Boss) user account
  • EnableDelegation must be true for the CsVoicePolicy
  • EnableDelegateManagement must be true for CsPlatformServiceSettings update: this is on by default in the Dec 2017 CU found here
  • Please note this was introduced here
  • UcsAllowed must be false for CsUserServicesPolicy (Lync Server 2013 only)

So let’s walk through this:


I will use Test3 as the boss and test4 as the admin


So we verified our users are EV enabled:



I only have one domain so the forest portion is easily verified.


In my voice policy we see that the Enable delegation is set to true:


Now since I have applied the CU needed for CSPlatformservicesettings I see by default this is set to false:


‘Set-CsPlatformServiceSettings –EnableDelegateManagement $true’




Since this is a 2015 pool the UCSAllowed does not apply here


So now over to our Boss on the Mac client:

  1. On the Contacts tab, search for the contact you want to add as a delegate.
  2. Right-click the contact to show the available contact options. (Or click the person’s photo to show the contact card.)
  3. Select the Groups icon and then select My Delegates.

Now we can sign in as the admin and we should see we were added as the delegate for Test3 (Boss)


At this point we are all done and you should be able to use the delegation as expected with the Mac client with SFB on Prem.