There are a number of opportunities to ask for referrals during the 4E process including:

• When prospects are enticed to give their details
• Each time you touch your prospects with phone calls, networking letters etc.
• During the sales process when the prospect expresses strong support for your product or service
• As the prospect is signing the contract but on the understanding the referral will be given when deliver is complete
  
• During the delivery phase when your execution is delighting the customer
• When you are reviewing your performance with the customer.