What can you do to avoid the mistake of saying “yes” when you know the answer should be “no”?

NO is an itegral part of any Negotiation process. A shrewd negotiator should learn the art of staying calm under pressure and say NO when required. However, NO should always be followed by either a) explanatory statement explaining the reason b) by an alternative to what the customer has suggested. NO with a big full stop must always be avoided. Leave a room where the conversation can continue.

No is an important answer in business and generally.Sometimes when under pressure somedody can be confused and say yes or partly accept things that he should not. Before you sit down on a table with a customer have ready your "red lines" to avoid confusion when you are pressed by the situation.No can be said with various ways but you should not say it directly to customer.When you decline a proposal or a statement have an alternative solution or proposal to make.Win - Win should be the result of a succesful negotiation where both parts leave with something in hand :)