SAP Fiori deployment options and SAP Fiori front-end server strategy – UPDATE 2021
**This blog post is updated on October 2021 **
Update October 2021: Release of SAP Fiori front-end server 2021 for SAP S/4HANA and updated version of document SAP Fiori deployment options and system landscape recommendations. Alternative options for the UIBAS001 version when upgrading to SAP FES 2020 or SAP FES 2021.
Update May 2021: Additional hints regarding SAP Fiori front-end server maintenance period according to SAP note 2217489 and restrictions regarding the compatibility of apps of component UIBAS001 600 with S/4HANA backend releases, as described in SAP note 2436567.
Update February 2021: Release of SAP Fiori front-end server 2020 for SAP S/4HANA SP01 which includes SAPUI5 1.84 as long-term maintenance version and which also supports SAP Business Suite in the hub or standalone server deployment.
This blog post delivers a short summary of the different SAP Fiori front-end server versions and the related deployment options. For more details, please check the document SAP Fiori deployment options and system landscape recommendations.
SAP Fiori front-end server 6.0 is a long-term, stable UI technology foundation for SAP Fiori apps of SAP Business Suite and SAP S/4HANA systems, see also blog post. The end of maintenance of SAP Fiori FES 6.0 (end of 2027/30) relates directly to the maintenance period of SAP Business Suite.
SAP Fiori front-end server 6.0 and the predecessor versions can be deployed embedded or as a standalone server/hub for SAP S/4HANA and SAP Business Suite systems. The embedded deployment for SAP S/4HANA systems is the recommended setup. The standalone server deployment for SAP S/4HANA systems is mainly used by customers due to security aspects for external access scenarios.
In addition, for SAP Business Suite systems, the SAP Fiori front-end server can serve as central hub to offer a single entry point to multiple systems. This is not possible for an SAP S/4HANA system landscape, because of the version dependencies of the SAP Fiori UI components and backend versions.
The SAP Fiori front-end server versions up to 6.0 support all SAP S/4HANA and SAP Business Suite releases, down to SAP NetWeaver 7.40 based installations. This enables customers to consume new UI technology innovations by a selective upgrade of the SAP Fiori front-end server without touching the backend components.
SAP Fiori front-end server 2020 for S/4HANA (FES 2020) was initially dedicated to the SAP S/4HANA product. Due to mandatory legal requirements related to accessibility, also SAP Business Suite apps are released for SAP Fiori front-end server 2020 as of SP01. This allows customers to reach accessibility compliance for SAP Business Suite apps by using the new SAP Fiori front-end server version as a central hub or standalone server.
SAP Fiori front-end server 2021 for S/4HANA (FES 2021) is now released (RTC October 13th). The deployment recommendations stay the same as for the predecessor versions (embedded for SAP S/4HANA systems, hub deployment for Business Suite). FES 2021 does not support IE11 browser any more.
SAP FES 2020 contains the software components SAP_UI 7.55 (including SAPUI5 version 1.84 as long-term maintenance version) and UIBAS001 600.
SAP FES 2021 contains the software components SAP_UI 7.56 (including SAPUI5 1.90 in the initial shipment) and UIBAS001 700. The long-term maintenance SAPUI5 version 1.96 will be part of the first support package SAP FES 2021 Sp01, which is planned for Q1 2022.
For more information on planned support packages please refer to Schedule for maintenance deliveries.
SAP FES 2020 can be used for the SAP S/4HANA releases: 1809, 1909 and 2020 and for SAP Business Suite systems. Lower SAP S/4HANA releases are not supported.
Please note, that there are restrictions regarding the compatibility of UIBAS001 600 apps/components with S/4HANA 1809/1909, see SAP note 2436567.
To resolve this, you can keep the UIBAS001 version to 500 while upgrading SAP_UI to 7.55 during an upgrade to FES 2020 in an SAP S/4HANA 1809 or 1909 installation. For more details, see SAP note 2217489.
SAP FES 2021 supports the newest S/4HANA releases: 1909, 2020 and 2021 and SAP Business Suite systems. There are restrictions regarding the compatibility of UIBAS001 700 apps/components with S/4HANA 1909/2020, see SAP note 2436567.
To resolve this, you can keep the UIBAS001 version to 500 or 600 while upgrading SAP_UI to 7.56 during an upgrade to FES 2021 according to the SAP S/4HANA release 1909 or 2020. For more details, see SAP note 2217489.
Deployment Options: For SAP S/4HANA systems both deployment options – embedded and standalone FES server – are supported. The embedded deployment is the recommended one.
SAP Fiori front-end server cannot serve as central entry point (hub) to multiple S/4HANA systems, see SAP Fiori deployment options and system landscape recommendations.
For SAP Business Suite systems only the hub or standalone server deployment is supported. This is due to the minimum SAP NetWeaver version 7.52.
SAP Fiori front-end server with SAP S/4HANA – upgrade options
As shown in the graph, you can upgrade the front-end server components without upgrading the S/4HANA product version. This is valid for the embedded and for a standalone server deployment. To resolve some dependencies of UIBAS001 600/700 apps to the S/4HANA backend version (see also SAP note 2436567) you can keep the UIBAS001 version according to the fitting S/4HANA backend version while upgrading the SAP_UI component (including SAPUI5) to the newer version, see SAP note 2217489.
Technically SAP Fiori front-end server as of version 2020 requires SAP NetWeaver 7.52 as the minimum release. This is required to be able to consume technology features, such as OData Version 4.0, and thus reduces technical limitations for future UI technology innovations.
For lower SAP S/4HANA releases an upgrade to the long-term maintenance version SAP Fiori front-end server 6.0 is recommended. Please refer also to this blog post.
Please note that in general SAP Fiori front-end server versions have a two-years maintenance period. Then you need to upgrade the SAP Fiori front-end server components. SAP FES 6.0 as a long-term maintenance version is an exception. See also SAP note 2217489.
SAP Fiori front-end server with SAP Business Suite – upgrade options
Remark: In case you want to have IE11 support beyond the end of maintenance of FES 2020, which is end of 2023, you should stay with SAP FES 6.0.
SAP’s strategic direction is to evolve powerful alternatives for a SAP Fiori front-end server as a central hub or standalone server with a much lower TCO on customer-side.
The front-end server hub as central entry point to multiple systems with UX integration capabilities is covered by the SAP Launchpad Service on SAP Business Technology Platform, which will further evolve over times.
Currently alternatives for securing the backend systems without a SAP Fiori front-end server (e.g. in the DMZ network zone) for external access scenarios are being evaluated.
Updated SAP Fiori Deployment Options and System Landscape Recommendations
Please check out the newly updated document SAP Fiori Deployment Options and System Landscape Recommendations for more detailed information.
Schedule of maintenance deliveries: SAP FES Support Packages