Hi Everyone!

I recently had the opportunity to use PowerShell to update AzureAD user attributes. This is different from what I normally do as we still leverage an on-prem AD setup.

I’d never used the command before but I know PowerShell and I’m fairly confident with the AD PowerShell commands.

The mission at hand was this: Update AzureAD user attributes so that the Marketing department had new address information

The first and rather dirty method I put together as a proof-of-concept is below:

https://gist.github.com/IT-Delinquent/d0cbd2e3c478f371e318f61cce946dc2

I know right, it’s ugly. It’s lacking any form of error checking, there’s no host output and it’s hard to read.

What I did next was put my code behind a few checks. You can see the improved code below:

https://gist.github.com/IT-Delinquent/90973cbf9d99f471dc8027babb98d709

This was looking much better, it handles error nicely but there is still room for improvement…

I want to implement splatting and also look into ways to speed the script up!

I wanted to take a look into speed first. I know there are subtle different between using the -filter parameter and piping the results into a Where-Object commandlet. Lets run some tests!

I ran the below commands 5 times to get an average using Measure-Command and outputted in total miliseconds:

CommandGet-AzureADUser -ErrorAction Stop | Where-Object {$_.Department -eq ‘Development’}Get-AzureADUser -Filter “Department eq ‘Development'” -ErrorAction Stop
#11311.66696630.8861
#21769.62537973.5126
#32122.87496060.9699
#41963.65125315.6691
#53437.2685783.7616

Crazy! Switching from the -filter parameter to using the pipeline more than halved the time it took for the command to run!

Next was to build the hashtable for splatting in the Set-AzureADUser parameters before building the final version. This was simple done by using the below code:

https://gist.github.com/IT-Delinquent/1e4b6ff7b3a30cdf1ffd69f9fb055466

This now means I can simplify the Set-AzureADUser command.

You can find the full and finished script below:

https://gist.github.com/IT-Delinquent/09c7fef62d8a49a37dcb5afe5592bfb7

Enjoy!

By admin

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