Since Microsoft released “Roaming Signatures” it has been expected that there will come support for this in the Graph API, so that external applications, for instance IAM systems, can update signatures on behalf of all users in a company.
Here is link to a discussion regarding this.
Here is link to an inquiry from the feedback portal.
From the discussion where it says that the support for this is on the roadmap, however no one can say when it will be released.
We are in desperate need for this API-support as the application we use now for managing signatures has EOL later this year, and it does not support Exchange Online due to this lack of API-support. Our organization (approx. 8000+ users) will then loose the managed signatures. This is particularly bad since we are facing a transition to the New Outlook.
We hope sincerely that Microsoft will prioritize this and release support for Roaming Signatures within the Graph API very soon.
This is so vital, please get it sorted!
What annoying news but good that they are at least giving a response now, rather than hoping people would just give up waiting and slowly vanish.
So why now the extra hurdle that this is possible for people to do, but you must package what you're doing in the new 'add-in' format so it can be installed that way........ we already packaged ours as an Intune app because apparently that was the new future way for things and then that was subsequently rendered scrap because commands were removed by Microsoft?
Why does it have to be a new app type and why can't they release any visibility or management of it via Graph or Powershell. It's great when 'things just work' and you never need to look under the hood, but when they don't work silently and smoothly and you don't have any access to see or change what's going on at the Exchange end secret folders etc etc, then it's incredibly frustrating not to have any tools that can work on this?
We know it's not a consideration of time because: there has been so much time. Why behave like this, who is it benefiting?
