My achievements in my field of sphere

What did I do? So what?
Made a complicated inventory program for my company. Saved the company time and money. Wrote a complex inventory application, saving time and money.
What did I do? So what?	Implemented a new accounting system. Implemented a new accounting system for multiple locations reducing time for customer inquiries
What did I do? So what?	Implemented a new client service program. Developed and implemented client service program, which expanded small-to-medium client base 35%

Examples of Achievement Statements

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  Developed a new employee orientation program that 100% of the company locations adopted.
  
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  Responded to over 85 customer calls daily and solved 90% of their concerns.
  
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  Served customers in a positive way, receiving two customer service awards in the past year.
  
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  Assisted credit manager in account collection by phone and mail, increasing accounts receivables by 20%.
  
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  Created a multi-media campaign that increased enrollment by 700 students in eight years.
  

List of achievements

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  Re-organized something to make it work better
  
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  Identified a problem and solved it
  
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  Come up with a new idea that improved things
  
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  Developed or implemented new procedures or systems
  
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  Worked on special projects
  
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  Received awards
  
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  Been complimented by your supervisor or co-workers
  
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  Increased revenue or sales for the company
  
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  Saved money for the company
  
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  Saved time for the company
  
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  Contributed to good customer service
  

Basically, through this general interview question recruiters want to see if you stand out from the rest of the applicants, and if so what makes you outshine the others.

Recruiters usually ask “What is your greatest achievement?” to get a better idea of what you consider important and on what basis you consider it so.
Also, through this general interview question, the recruiter tests your soft skills and whether or not a candidate is ambitious enough to set higher bars for yourself.