Live Data Connections to SAP BPC Embedded
You can create live data connections to an SAP BPC embedded configuration system using the Direct connection type.
In order to write data back to a BPC embedded configuration model from SAC, you will need a planning license (minimum SAP Analytics Cloud for planning, standard edition).
For more information, refer to Features by License Type for Planning Models.
The Direct connection using CORS is recommended for these reasons:
To use this connection type, you must configure Cross-Origin Resource Sharing (CORS) support on your SAP BW system.
For BPC specific feature limitations in a live connection, see SAP note 2969947 .
In addition to that, there are some known limitations and minimum version dependency requirements on BW side, which equally applies to the embedded configuration of SAP BPC:
- For details of the support of BW query functionality, please refer to SAP Analytics Cloud Support Matrix for Live Connectivity to SAP NetWeaver BW and SAP BW/4HANA
- For information on known limitations to SAP BW, see SAP note 2788384 .
- For information on BW reporting features and their version requirements, see SAP note 2715030 .
HTTP/2 is supported for SAP BW data sources. This backwards compatible protocol optimizes network and server resource usage to increase performance.
When to use HTTP/2
Measurements show that performance gains can be expected when there are long running queries with multiple widgets.
Fast queries (query execution time is 2 seconds or less)
If there are fast running queries, for example because of OLAP caching, there will be no noticeable difference in the overall story loading performance.
If the query execution time is 3-5 seconds or longer, browser connections would likely stall during story loading (previously, under HTTP/1.1), especially when there are multiple widgets on one page. But utilizing HTTP/2, a performance improvement of 20-30% is expected.
Use the Number of parallel sessions for BW data sources setting in SAP Analytics Cloud to make sure that the BW server can process the sent requests in parallel (to prevent the backend becoming the bottleneck). However, be aware that higher values for this setting will increase the load on the BW server, so you'll need to ensure that the BW server is configured to handle this load. It might be necessary to increase icm/max_conn and other parameters. For more information, see the following two documentation links.
How to enable HTTP/2
- Backend side: See https://help.sap.com/doc/7b5ec370728810148a4b1a83b0e91070/1610%20000/en-US/frameset.htm?c7b46000a76445f489e86f4c5814c7e8.html and this blog post: https://blogs.sap.com/2016/10/19/connectivity-news-abap-7.51/.
SAP Analytics Cloud only supports HTTP/2 connections using the direct connection type.
Be aware that all browser vendors support HTTP/2 exclusively over HTTPS.