Hi Stephanie,
The 3rd url type I’ve tried is from the “Domain” field in the single page application settings.
the resulting URL which I used in the curl --url field is https://<Domain copied and pasted>/api/v2/prompts/login/custom-text/en. The response to this curl request is the --data field in my request, however the login screen text did not change.
Also, now that I think about it, is it possible that I am not presented with English (en) version of the log-in screen? All of the text certainly appears as English and I am located in Canada (above US), however I have no idea how to check what’s presented to me is the English version.