Problems for adding users in DIstribution Dynamics groups with ExtensionCustomAttribute

Vaalgruund 

The problem with the example commands is that we don't have any data to compare them against.

If you go back to the Get-ExoMailbox commandlet you used to fetch this data:

With this screenshot, we can't tell if you've provided a single value or multiple values (i.e. via using an array with Set-Mailbox.).

Then try running the following command (using your mailbox, of course.) If the values all come out on one line then you haven't run Set-Mailbox properly - as shown in the first example (in red) from the screenshot below.

(Get-ExoMailbox -Identity test.mailbox -Properties ExtensionCustomAttribute1).ExtensionCustomAttribute1;

If you have run Set-Mailbox properly, then you should find all of the values exist on their own separate line - as per the second example (in green.)

This is what I spoke about in my previous post. But if you are seeing the values on separate lines, then something else is amiss.

Cheers,

Lain