Not necessarily. You'll need to prove yourself that same as any other prospective student: discussing your desired learning outcomes, illuminating your career path goals, and demonstrating your aptitude in certain areas. Your previous education and experience might potentially affect both your application and performance during the program.
All MBA candidates need to tell a compelling story about why they want to earn this degree. Admissions officers will readily understand your story if you studied business and worked in the corporate world or even in nonprofit or government administration. They may also understand if you did one of those things but not the other.
But if you have no business background at all, you should be prepared to discuss how and why your interests have changed, both in entrance essays and admissions interviews. Rather than view this as a disadvantage, you can use it as an opportunity to set yourself apart from other applicants. After all, you'll have made your decision to switch careers after exploring opportunities that many business students may not have considered.
If you have no business background at all, you should be prepared to discuss how and why your interests have changed, both in entrance essays and admissions interviews.
Still, you need to make sure that your quantitative abilities shine in your application. An article by Stratus admissions counseling points out that a potential weakness in nontraditional applications is a lack of experience working with budgets, data projections, or other numerical functions that are crucial to business. You can try to offset this by touting whatever quantitative experience or education you do have, including any courses you've taken since earning your bachelor's degree. A solid score on the quantitative section of the GMAT will also strengthen your application.
Coursework and Performance
An MBA curriculum typically covers both foundational and specialized topics in business administration, so previous business students might be familiar with some of the subject matter. However, your performance usually depends on how well you absorb the MBA material and complete assignments rather than your existing knowledge of business.
Above all, remember that a school of business decided to admit you based on your experiences. The program's administrators trust that you will succeed in your studies and beyond, so you should measure your success against yourself, not against your classmates.