SAP Knowledge Base Article - Preview

2722593 - WDA: Error downloading files from Webdynpro ABAP app embedded into Fiori


When downloading a file from a Web Dynpro ABAP called from Fiori Launchpad, an error occurs or the file isn't downloaded.

Most common errors are ASSERTION_FAILED on class CL_WDR_CLIENT_SSR_LS or a timeout.

On some cases removing the parameter sap-xapp-state from the URL can work as a workaround to download the file.



  • Web Dynpro for ABAP
  • Fiori Launchpad
  • SAP NetWeaver SAP_UI 750, 751 or 752
  • SAP Web Application Server for SAP S/4HANA


SAP NetWeaver all versions ; SAP Web Application Server for SAP S/4HANA all versions


Web Dynpro, Webdynpro, CL_WDR_CLIENT_SSR_LS==========CP, ASSERTION_FAILED , KBA , BC-WD-ABA , Web Dynpro ABAP , BC-WD-ABA-REN , Rendering , BC-WD-ABA-RUN , Runtime , BC-WD-ABA-CFG , Configuration / Personalization , BC-WD-ABA-GEN , Generation , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.