Cost accounting

customer profitability analysis in this module

Just like products with the greatest contribution margin may be more advantageous to promote by retailers and merchandisers, customers who bring in the most profit to a service provider deserve special attention, and sometimes special treatment as well.

In the area of financial service providers, a Big Four firm may be engaged to provide auditing, tax and consulting services to clients. There are restrictions as to what types of specific services may be provided if the firm also acts as an external auditor, though.why do you think these restrictions are in place?