Hello API Team,
I use API "bills/getAll" to take all the invoices closed in the last day (filter d-1 at "CloseUtc" request parameter) at MEWS for creating them into my SAP Accounting system.
For each bill i have the orderitems for services includes in the bill and payment data, and the customer/company "basic data" at the "Ownerdata" structure (discr.=BillCustomerData for Customers | discr.=BillCompanyData for Companies)
These basic data doesn't create/modifiy a customer at my SAP accounting system because email is a SAP basic data for customer/company, and this is missing.

Should it be possible to add this basic data into the API to recover and complete Customer creation/update in the bills treatment?

Otherwise I have to make a new call to API service (customers/getAll | companies/getAll) for each customer has not email informed previously, only for recover this "email attribute", I would like to avoid this "innecessary new API call to recover master data).