Can a bba graduate can apply for jobs with completing the Appian developer certification?
Discussion posts and replies are publicly visible
It couldn't hurt to get a Community Edition and build some interesting things there. In computing in general, what employers are seeking is ability. Some ability really only comes with experience, but if you have a portfolio, that's a direct expression of your current ability. Different from experience, but I think you can easily make up for a lack of some experience with a good portfolio.
It also depends a good bit on what you want to do. If you want to code, though, folks who can code and can show that they can code should be able to get jobs. You could possibly also get your foot in the door as a BA that can code.