The Monthly renewal interval conflicts with the hard coded script logic of the Update-AutomationRunAsCredential runbook: Because only if the RunAs cert is about to expire in LESS THAN A WEEK, the runbook updates the cert. Therefore, if we'd use the Monthly interval the next cert check could be too late (worst case up to three weeks).
The Monthly renewal interval conflicts with the hard coded script logic of the Update-AutomationRunAsCredential runbook: Because only if the RunAs cert is about to expire in LESS THAN A WEEK, the runbook updates the cert. Therefore, if we'd use the Monthly interval the next cert check could be too late (worst case up to three weeks).