--- title: Learn SAP from the Experts | The SAP PRESS Blog | China Martens description: China Martens is a long-time observer of SAP software as both a technology journalist and an industry analyst. In her most recent role with the Americas' SAP Users' Group (ASUG), she has had a foot in both the technology journalism and analyst worlds as a writer and editor for ASUGNews and head of ASUG Research, creating surveys, analyzing the results, and writing reports. --- [![rheinwerk-sappress-logo-header-1](https://blog.sap-press.com/hubfs/rheinwerk-sappress-logo-header-1.svg)](https://blog.sap-press.com/) [Blog](https://blog.sap-press.com) - Books - Get an overview of our books and courses on every relevant SAP topic. - [Programming](https://sap-press.com/programming/) - [Administration](https://sap-press.com/administration/) - [BI](https://sap-press.com/business-intelligence/) - [Finance](https://sap-press.com/finance-controlling/) - [Logistics](https://sap-press.com/logistics/) - [HR](https://sap-press.com/human-resources/) - [CRM & Sales](https://sap-press.com/marketing-sales/) - [HANA](https://sap-press.com/hana/) - [Introductions](https://sap-press.com/introductions/) - [E-Bites](https://sap-press.com/e-bites/) - [Certification Guides](https://www.sap-press.com/certification-guides/) - [Rheinwerk Courses](https://www.sap-press.com/online-courses/) - Book Subscription - Get unlimited access to all SAP PRESS books! - [SAP PRESS Subscription](https://sap-press.com/subscriptions/) ![](https://blog.sap-press.com/hs-fs/hubfs/On%20Modify%20or%20On%20Save_%20A%20Practical%20Decision%20Model%20for%20RAP%20Determinations.jpg?width=1000&name=On%20Modify%20or%20On%20Save_%20A%20Practical%20Decision%20Model%20for%20RAP%20Determinations.jpg) [Programming](https://blog.sap-press.com/tag/programming) | Featured article ## [On Modify or On Save? A Practical Decision Model for RAP Determinations](https://blog.sap-press.com/on-modify-or-save-a-practical-decision-model-for-rap-determinations) If you have written more than a handful of ABAP RAP behavior definitions, you have declared a determination and had to make a choice: should it run on modify or on save? ![Alejandro Kinsbrunner](https://blog.sap-press.com/hubfs/Kinsbrunner.png) by [Alejandro Kinsbrunner](https://blog.sap-press.com/author/alejandro-kinsbrunner) [Read More](https://blog.sap-press.com/on-modify-or-save-a-practical-decision-model-for-rap-determinations) ![China Martens](https://blog.sap-press.com/hubfs/China%20Martens.jpg) **China Martens** China Martens is a long-time observer of SAP software as both a technology journalist and an industry analyst. In her most recent role with the Americas' SAP Users' Group (ASUG), she has had a foot in both the technology journalism and analyst worlds as a writer and editor for ASUGNews and head of ASUG Research, creating surveys, analyzing the results, and writing reports. # Blogs by China Martens ### SAP Blog Topics - [All SAP Topics](https://blog.sap-press.com) - [Logistics](https://blog.sap-press.com/tag/logistics) - [Programming](https://blog.sap-press.com/tag/programming) - [FICO](https://blog.sap-press.com/tag/fico) - [Administration](https://blog.sap-press.com/tag/administration) - [Business Intelligence](https://blog.sap-press.com/tag/business-intelligence) - [Featured](https://blog.sap-press.com/tag/featured) - [What Is?](https://blog.sap-press.com/tag/what-is) - [CRM & Sales](https://blog.sap-press.com/tag/crm-sales) - [Video](https://blog.sap-press.com/tag/video) - [Human Resources](https://blog.sap-press.com/tag/human-resources) **Subscribe to our blog!**Get notified about future blog updates. - - - - - ### Most Popular Blog Posts 1. 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[Logistics](https://blog.sap-press.com/tag/logistics) [Batch Determination and Batch Check in SAP S/4HANA](https://blog.sap-press.com/batch-determination-and-batch-check-in-sap-s4hana) by [SAP PRESS](https://blog.sap-press.com/author/sap-press) **Subscribe to our blog!**Get notified about future blog updates. - - - - - ### The official SAP PRESS Blog As the world’s leading SAP publisher, SAP PRESS’ goal is to create resources that will help you accelerate your SAP journey. The SAP PRESS Blog is designed to provide helpful, actionable information on a variety of SAP topics, from SAP ERP to SAP S/4HANA. 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