We need to configure static UUID event stream URL.
For example, there is a UUID which is automatically generated at the end of the URL.
https://{{ aap_url }}/eda-event-streams/api/eda/v1/external_event_stream/{{ UUID }}/post/
If our event stream is destroyed/created it would mean that the URL would change and, therefore, we would need to update all our external services with the new EDA Event Stream URL.

However, currently it seems there is no way to modify "url" via API(/api/eda/v1/event-streams/

/).

I double checked the Event Stream settings instruction but it didn't work.
FYI…https://www.youtube.com/watch?v=P2NmuCIUiYg&t=500
For example, we can view the Event Stream with this API:
~~~~~
/api/eda/v1/event-streams/
~~~~~
But after confirming the ID there:
~~~~~
/api/eda/v1/event-streams/1/
~~~~~
We can change the settings by PATCH with.
But since changing the "url" is not allowed, it seems to be ignored.