Can anyone suggest how to interact with customers about complaining without losing order?

First and the most important thing that Be " Religously honest" not professionally honest because business customer is very intelligent. He'll come to know the reality soon from other sources and once this relationship is cracked, it'll take ages to recover it.

Admit/Accept it like a professional. Make customer realize that his problem is your problem. Dont let customer make followups but you should be one who updates him regarding the progress. Get into a friendly relationship so he better think of you as a supporter. Provide him with a Solution as early as possible. Competition is fierce. It'll not take much time for him to switch as market is full of alternatives.

First listen the customer and try to understand the problem he is facing.then give him suggestion according to the fisibilty.

The most important point about customer care and relationship is to carefully understand the customer's problem and situation that he / she is facing followed by the immediate solution that can be provided keeping in view company's SOPs.

Any apology note will be a plus for the inconvenience that customer has encountered.

first know the customer complaining then explain it why it happen then give any complimentary you can offer so the customer satisfy for your effort for the mistake or accident that happen because his complain already there so you need to keep him speceal treatment so you will not lose that customer

Firstly patiently listen to what the exact problem is of the customer and then apologise for the same. Then explain them what the exact problem has been happened because of which the customer has lost the order and then ensure them that their complaint will be taken regarding this and it will be seen that the customer wont face such problems in the future. Give the customer the proper solution for the issue he is facing so that the customer gets satisfied with whatever solution you will be giving them so that they wont come up again and again for the followup of his issue again and again. Ensure the customer that whatever issue is there it will be resolved completely within the specific time period and the customer need not do follow up again and again and the issue will be resolved by the company itself.

First of you need to sympathise with the customer fully, express remorse and concern, listen very carefully to the guest complaint without interruption, ask questions to find out guest prefferencethen offer a sollution avoiding or reducing the loses to a minimum towards the company. Then follow up to ensure customer satisfaction.

be a good listener to the customer any realise the type of problem he/she has, try to interacte with the issue proffessionally and provide his with options that might be a solution of his problems with a patience and professionalism .