Today’s data scientists and developers are multilingual programmers, adept at leveraging various programming languages to achieve dynamic solutions. The bevy of open-source languages and their global adoption has inarguably advanced industry, and yet the stability, security, backward compatibility, and enduring innovation of SAS similarly ensure its future. So, as thought leaders and hands-on developers, how do we cohesively maintain and maximize both SAS and open source solutions? Software interoperability describes the ability of software systems, components, and languages to communicate effectively with each other, and must be prioritized within today’s multilingual environments. PROC FCMP, the SAS® Function Compiler, enables Python functions to be wrapped in (and called from) SAS user-defined functions in both SAS 9.4 and SAS Viya. Productivity and the pace of development are maximized when existing Python code can be run natively (i.e., by a Python interpreter) rather than having to be needlessly recoded into the SAS language.…