Save only monthly sales

Hi , i created new data field called it " Monthly sales " it will save the sales that users made each month , how i can filter the sales on monthly and save it in the database ?
2- any idea how to make payout on specific date of the month ? for example run auto monthly work flow
this is the link for my case :

Thanks in advance

Hi, Hassan!

For running a monthly workflow you have to be on a paid plan, so you’ll be able to create and schedule workflows here:

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