I,ve more than 4 years of experience working with odoo daily.
I can create a module for you where you set the
Email type (multiple or ; separated)
Days offset, (If True days -1 sales. if False today sales).
Subject and message text ( i'll create a e-mail template).
time (i'll create a schedules work where you can set the periodicity to run the function.
I'll also create an exception days. (ex. if sunday will send the mail or not).
In the mail i'll atach the customer point_of_sale.report_detailsofsales.
I've a doubt about the e-mail separated or multiple, what this means?
I've in mind a function that search for sales amount for each partner and if it's bigger than 0.0 will
send the report, each partner only have one email.
If you have any dubt, just ask me.
Kind regards.