Only update every 5 minutes

[madpilot]

Update should occur at 45 seconds past the 5 minute boundary

[OmgImAlexis]

Going off experience with scale I'd suggest being careful with this that you don't cause a herding issue with everyone customers hitting this at the same time.

[madpilot]

Good point - I'll throw some randomisation in there. And hopefully by the time we hit a scaling issue from HA we'll have a better mechanism for this.