Is there a way to see is refresh dispatches generated an error, and what the earliest next refresh time is?

[f1wade]

I have manual dispatches turned on, and have automations triggering on various other sensors, so sometimes I try and refresh more than every minute, and sometimes, it then leaves a big gap.
So I am trying to add checks on errors generated from the refresh call, and then wait until the next refresh time.

I wondered if there is an attribute of some other integration sensor, that tells me the next refresh time, or if there was an error?
or even the number of calls within the hour?

[BottlecapDave]

There's the diagnostic sensor which exposed this data https://bottlecapdave.github.io/HomeAssistant-OctopusEnergy/entities/diagnostics/#intelligent-dispatches-data-last-retrieved.

If you use the latest version of the manual blueprint, it takes this sensor into account when refreshing dispatches manually.