I read very old threads telling it's not possible to do it
I also didn't find any possibility on thingworx 8.5
May this be possible by writing an extension ?
@iguerra Please check the following information on the help center for creating/customizing login pages for your organization.
I know this, I can do it manually but not pragmatically (with a service)
My organization related entities are all created and configured pragmatically when a new organization is created.
We're not finding a way to do this programmatically. If interested, you can submit a request for this on the ThingWorx Ideas page. This will allow other community members to vote for it. You will need to provide details of your use case.