Extensions in the Age of S4 HANA
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The S/4HANA in its broadest sense (including the SAP Cloud Platform) not only lead to a new programming model, but also to new options (and variants within the options) when it comes to extensibility and add-on development. In this talk, I would like to share my thoughts about the different options and the consequences for the customers and partners. We will take a look into the topics of in-app extensibility, side-by-side extensibility, what options there might be if you want to avoid the cloud and what might happen to BRFplus
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Extensions in the Age of S4 HANA
- 1. Extensions in the Age of S/4HANA Christian Lechner (msg systems ag) @lechnerc77 https://people.sap.com/christian.lechner
- 2. How do we currently develop extensions? 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 3. Why do we have to think about that? 07/10/2017 SAP Inside Track Munich 2017 S/4HANA Deployment & SAP Cloud Platform SAP’s Cloud First Strategy
- 4. What type of extensions exist in S/4? 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 5. What type of extensions exist in S/4? - Classic Extensions 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 6. Classic Extensions 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 7. Classic Extensions - Some Thoughts 07/10/2017 SAP Inside Track Munich 2017 Consequences • Not transferable to the S/4HANA Cloud (usually) • Risk to run into “old habits” (strong coupling, modifications, …) Tips • Stick to S/4 Programing model for Add Ons • Care about interfaces/APIs (lose coupling)
- 8. What type of extensions exist in S/4? - In-App Extensions 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 9. In-App Extensions & Key User Extensibility 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 10. In-App Extensions - Some Thoughts 07/10/2017 SAP Inside Track Munich 2017 Chances • Speeding up “RICEFW”/implementation tasks • Transfer to the S/4HANA cloud is possible • Restrictions can be a good thing (challenge superfluous requirements) • Tooling is constantly improved Risks • Abuse of mechanism for Add On development
- 11. What type of extensions exist in S/4? - Side-by-Side Extensibility 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 12. Side-By-Side Extensions 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 13. Side-By-Side Extensions - S/4HANA Cloud SDK 07/10/2017 SAP Inside Track Munich 2017 Enable Development • SAP S/4HANA Project Templates • SAP S/4HANA Types and VDM • Resilience • Multi-tenancy • SAP S/4HANA Mocking • DevOps: Pipeline as Code • Quality Checks • … https://www.sap.com/developer/topics/s4hana- cloud-sdk.html
- 14. Side-By-Side Extensions - Some Thoughts 07/10/2017 SAP Inside Track Munich 2017 Tips • Adhere Cloud Native Development • Java is (currently) first class citizen • Go for Spring Boot • Use the SAP S/4HANA Cloud SDK Keep in mind • This is NOT ABAP development • There is still a connection to non Cloud Native applications aka S/4HANA
- 15. SbS Extensions - “New Kid on the Block” 07/10/2017 SAP Inside Track Munich 2017 © SAP SE Welcome ABAP
- 16. SbS Extensions - ABAP 07/10/2017 SAP Inside Track Munich 2017 ABAP?
- 17. SbS Extensions ABAP - Some Thoughts 07/10/2017 SAP Inside Track Munich 2017 In general • Put emotions aside • Use-cases exist for using ABAP in SCP Keep in mind • ABAP is not Cloud Native • ABAP in SCP has restrictions in most cases no copy paste from legacy • Not publicly available yet • No pricing available yet • A lot of open questions remain …
- 18. SbS Extensions Variant - SAP HANA XSA 07/10/2017 SAP Inside Track Munich 2017 SAP S/4HANA: New Architectural Blueprint for In-House Software
- 19. SbS Extensions SAP HANA XSA - Some Thoughts 07/10/2017 SAP Inside Track Munich 2017 In General • Logical approach for Side-by-Side extensibility • MTA allow a transfer to SAP CP • Get Cloud experience on prem BUT • Risk of wrong integration patterns (cross-schema access) • Do you need SAP HANA objects? • SAP HANA is not a Cloud (scalability!)
- 20. Extensions - Integration 07/10/2017 SAP Inside Track Munich 2017 © SAP SE
- 21. Extensions Integration - Business Rules 07/10/2017 SAP Inside Track Munich 2017
- 22. Extensions Integration Business Rules - Some Thoughts 07/10/2017 SAP Inside Track Munich 2017 In General • Overall Harmonization (ABAP, JAVA, HANA …) • Stick to open standards (DMN) • BRFplus still worth to use! BUT • This is a long way to go • Take care about current restrictions and deprecations
- 23. Extensibility options - Some last words ... 07/10/2017 SAP Inside Track Munich 2017
- 24. Some last words ... 07/10/2017 SAP Inside Track Munich 2017 • Choose the right approach for your problem: It is not an „either … or“ – combinations are allowed and often make sense • Be aware of mid-term consequences - not only technology counts • Keep an eye on the emerging SAP CP services • If ABAP: go for S/4 programing model • If Cloud Native: go for Java runtime in SAP Cloud Platform (S/4HANA Cloud SDK) • Last but not least ...
- 25. Some last words ... 07/10/2017 SAP Inside Track Munich 2017 … you are on a good path if you use Spring
- 26. Thanks for your attention!
- 27. 07/10/2017 SAP Inside Track Munich 2017 Extension Scenarios © SAP SE
- 28. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 Extensibility Overview: • https://www.sap.com/documents/2015/07/2ad5 9b27-347c-0010-82c7-eda71af511fa.html • https://blogs.sap.com/2017/09/15/get-started- with-your-sap-s4hana-cloud-side-by-side- extensions-in-5-simple-steps/
- 29. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 Key User Extensibility: • https://blogs.sap.com/2017/05/28/introduction-to- s4hana-cloud-key-user-extensibility/ • https://blogs.sap.com/2017/05/28/key-user- extensibility-on-sap-s4hana-cloud-ui-adaptions-for- key-user/ • https://blogs.sap.com/2017/05/28/key-user- extensibility-on-sap-s4hana-cloud-adding-custom- fields/ • https://blogs.sap.com/2017/05/28/key-user- extensibility-on-sap-s4hana-cloud-adding-custom- business-logic/ • https://cp.hana.ondemand.com/dps/d/preview/1a93 686c176845f0832a2a73221dd90b/1511%20500/en- US/frameset.htm?3ccb50e724b045508fea8b2cf1774 b2b.html
- 30. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 S/4HANA Cloud SDK: • https://www.sap.com/developer/topics/s4hana- cloud-sdk.html • https://blogs.sap.com/2017/05/10/first-steps- with-sap-s4hana-cloud-sdk/ • https://blogs.sap.com/2017/07/28/sap-s4hana- cloud-sdk-faq/
- 31. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 Architecture Blueprint XSA – Side-by-Side: • https://news.sap.com/sap-s4hana-new- architectural-blueprint-for-in-house-software/
- 32. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 S/4HANA APIs: • https://api.sap.com/shell/discover/contentpacka ge/SAPS4HANACloud?section=ARTIFACTS
- 33. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 ABAP in SAP CP: • https://blogs.sap.com/2017/09/26/overview-of- abap-in-sap-cloud-platform/ • https://blogs.sap.com/2017/09/26/abap-in-sap- cloud-platform-frequently-asked-questions/
- 34. Links, Links, Links … 07/10/2017 SAP Inside Track Munich 2017 Business Rule Service SAP CP: • https://www.sap.com/germany/documents/2017 /08/2a8094b1-ce7c-0010-82c7- eda71af511fa.gate.html# • https://blogs.sap.com/2017/09/22/business- rules-united-sap-enterprise-rule-modelsap- teched-2017/
Editor's Notes
- Starting Point: Business Suite on Prem Which Technology: Enhancement in ABAP Range: from small extension to huge AddOn development Impact: from deeply integrated (perhaps too deep aka modification) to loosely coupled
- Motivation Higher agility Higher speed „B2C-ish“ Applications also in the enterprise Integration of other field like IoT, Machine Learning No longer „business as usual“
- What is it? Business as usual – extending ABAP as we have known for decades Where is it available? Only on prem What can you do? Everything even modifications What skills? Usual ABAP, S/4 skills helpful
- What is it? Modification-free extension of S/4HANA Embedded into S/4 core Dealing with extension that are closely related to S/4 core Consumable by/Delivered with Side-by-Side scenarios Examples Hide fields Rename UI elements Add Custom fields in UIs/Reports, Forms Add custom business logic (BAdIs) Custom Business Objects Custom Analytics Where is it available? On prem and in the cloud What can you do? Restriction to specific use cases Restricted ABAP What skills? Some Dev Skills, but no hard-core dev skills necessary
- What is it? Loosely coupled Development in the cloud/for the cloud Extend or built Stand Alone A lot of degrees of freedom #WhereTheCoolShitHappens -> Disruptive Apps Where is it available? SAP Cloud Platform Extend on S/4HANA Cloud, S/4HANA on Prem -> second class citizen What can you do? Runtimes that are available What skills? Different Story: Cloud Native Development
- ABAP in SCP has restrictions SAP_ABA Only S/4 programing model Deprecated things have been removed Integration with S/4 only via whitelisted APIs
- Cloud based Services are more and more important Innovations are developed in the Cloud Side-by-Side Extensibility brings up the necessity to have functionality across system boundaries “Integrative character” (cross system boundaries) -> Cloud Example: Workflow, Business Rules In addition: On premise we have less innovation, less evolution of functionality
- Central Repo and Design Time -> DSM Design-time based on open standards (DMN enhanced) Transition planned Replacement for HRF