Re: Monthly Recurrence Flow
Hi @lrepko ,
The Start time here means that when you configure the current Flow, the first run of Flow will be at the Start time you specify, and then the Flow will be triggered according to the period you set.
If the Frequency you choose is Month, then the only parameters that can be configured at present are Time zone and Start time. You could configure the start time according to the format mentioned in the hint.
If you want to configure more parameters, please consider your suggestion in the Flow idea forum:
https://powerusers.microsoft.com/t5/Flow-Ideas/idb-p/FlowIdeas
Besides, since you want Flow to run once a month and complete the specified actions, you may also try the following method to configure your Flow.
Set Flow to run once a day, select your time zone, specify the start time and some parameters.
By default, the expected action is executed on the first day of each month. Use Condition to determine whether the current date is the 1st of this month. If yes, execute the following action.
Image reference:

This method will consume some quota of Flow runs, but only consumes 30 times a month, which can be ignored.
Hope it helps.
Best Regards,