This worked for me:

Settings>General>Device Management

Your phone might still be pointing at former carrier. Koodo should automatically update your APN, but this has to be done manually.

Let me know if this works.

Ps. I hate Koodo

Thank you for this tip.  I followed a similar navigation on my SE that is on iOS 15.6 which was:  

Settings > Cellular > Network Selection

it is set to “Automatic” and in the summary section under Settings > Cellular I can see Koodo displayed with a number of options including Wifi Calling, Calls On Other Devices, etc. 
 

Under that section I have the option to “Add Cellular Plan” - when I tap on that a QR code reader is invoked or I can choose to “Enter Details Manually”.  
 

I tried scanning the QR code from my purchase agreement but nothing happens.  When I select manual the following options appear:  

SM-DP+ Address 

Activation Code

Confirmation Code (optional)

Do I need to populate this and if so, what am I supposed to provide for these values ?

There doesn’t seem to be any further options beyond that in the Settings > Cellular page  

Hi @ewstebbs 

Please check this article to make sure APN settinggs are set up correctly: https://www.koodomobile.com/en/help/setting-data-your-non-koodo-phone

If you are still getting no service, please remove your sim card and reinsert it.

Let us know if it works.

Thank you for the response, Flo.

I followed the instructions for the iPhone on the page you shared and can confirm that the Physical SIM is being acknowledged by the device as per the Settings > General > About page:

Carrier = Koodo 50.01

IMEI, ICCID, MEID are all populated and under Available SIM IMEI2 is populated with values.

Under Carrier Lock it says “No SIM restrictions”

I shut down the device, removed the SIM card and reinserted it.  After powering up the device goes into searching status and ends up with “No Service” when it completes.

Have you tried resetting your network settings?

Hi,

I did the Network Reset and after the reboot it starts up with “Searching” status before it ends with No Service.

Hello again,

I’m being told by the automated response on the chat mechanism that I will not be called until Monday to speak to someone about the connectivity issue.  As I have spent a good part of my day off of work trying to solve this problem I would prefer to avoid spending Monday chasing this issue further.  

Are their any other steps I could attempt fix this issue myself or any tips to speak with someone to resolve this soon?  I’m totally perplexed by this start to my relationship to using Koodo services  :-/

Assuming you ported from another carrier, have you tried giving a call to the porting department? You can reach them at 1-844-232-7678. Hopefully they can help you out. 

Thank you again for the tips. This is a brand new number/account with Koodo and a first on the unlocked SE device I recently purchased. Would that number be able to assist with my situation or is there a better contact I should pursue?

In that case, the porting department would not be able to help you out.

Are you able to receive calls on another device? You can schedule a callback through Koodo Assist and ask the rep to direct you to someone in technical support. https://Koo.do/Chat 

Thank you for all of your assistance walking me through this process.  As it turns out this was a device issue, confirmed when the SIM was moved to a different iPhone device yesterday and the service started immediately.  I’ll be following up with the vendor regarding the status of the phone’s SIM reader - frustrating!  Thank you once again.