# Interoperability between EKL and CAA for 3DEXPERIENCE Native Apps Customization This Best Practices document outlines the methodology for Interoperability between EKL and CAA in an on premise environment. This document focuses on fulfilling business requirements by leveraging the openness between EKL and CAA to overcome technical limitations. [ Download PDF ](https://media.3ds.com/support/white-papers/adv_ent/external/2025/DS_WhitePaper_Interoperability_between_EKL_and_CAA_3DEXPERIENCE_R2025x.pdf) Need Assistance? Our support team is here to help you make the most of our software. Whether you have a question, encounter an issue, or need guidance, we've got your back. [Contact support](/support/contact-your-support-center) [Submit a request via 3DSupport App](https://dspart004-eu1-partners-ifwe.3dexperience.3ds.com/#dashboard:0b021cdc-9e58-47c3-8527-3d2314c48683/tab:3DSupport)