ServiceNow SDIM integration question

Hello, I’m fumbling a bit on my understanding of this integration and i’m hoping someone else has come across this before.

We have a pretty standard SDIM integration setup to our service now instance - however on the servicenow side we have a look up to another system to set a field based on the source name string being passed from Sailpoint containing (APP-XXX). I have changed the name of the source and updated it to include this. However, when I trigger an access request, and the request is created in service now, the OLD source name still appears and I do not understand why that would be the case.

as far as I can tell the source name is updated in all places on the source, the access request it self via api doesn’t have any reference to the old name either. so i’m assuming i’m missing something. $request.resource is still the old value, is there any way to update this? is it immutable on the backend no matter what I change perhaps?

Trying to save a lot of rework creating hundreds of new sources…

Thanks in advance!