The core reason behind Acumatica's flexibility is its Cloud xRP. While many closed-source programs also use proprietary code, Cloud ERP uses .NET and HTML 5, both industry standard codes.Any developer familiar with these languages will have no trouble creating add-ons that fit your company’s needs. So instead of hiring someone with application-specific knowledge, you can use your own programming team.Acumatica also hosts a marketplace for integrated solutions from 3rd party developers. So before taking the time to create custom programming, browse their existing library to see if there’s already a solution available.