Even for well-designed and well-managed channels, conflict is likely to arise, since quite often the interests of independent business entities will...

Even for well-designed and well-managed channels, conflict is likely to arise, since quite often the interests of independent business entities will not coincide. 

For instance, manufacturers might prefer that the retailer sells all the manufacturer's product, while the retailer prefers to only sell products with high enough margins; manufacturers would prefer not a "no product returns " policy, while retailers desire to offer the "no questions asked" return policy, etc.What are other some other examples of conflicts and what are some ways to resolve channel conflict?