This is one of the difficult task that any one faces. Here are few things that you can consider .
Work closely with customer when there is an issue .
follow up email or calls until you fix the issue
after the issue is resolved , follow up with customer to make sure things are okay
have communication with customer time to time with any business changes or system changes that will impact the customer, keep them in loop , that will help the customer to understand when issue arises .
There are more you can do to avoid escalations, but the above list will help .
Thanks,

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Prashant Rajpurohit
Answered On : Sep 25th, 2012
well it depends more on your customer handling skills and use sympathy words and sentences wherever necessary . As it reduces the frustration of customer , Also use this sentence " i totally understand your concern , and if i would have been in your place then i would have felt the same , but ........................" then explain him the technical prospects .
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