SAP Knowledge Base Article - Preview

2662396 - Unplanned substitution activation failed with HTTP request failed 400 error

Symptom

Users are experiencing HTTP request failed 400 error message when activating unplanned substitution.
The ERROR_LOG contains the following error messages:

  • /IWFND/CM_MGW050 - Operation not allowed for substitution rule from SubstitutesRuleCollection.
  • Changeset processing failed.


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Environment

  • Task Gateway
  • My Inbox Application
  • SAP enhancement package 1 for SAP NetWeaver 7.3
  • SAP NetWeaver 7.4
  • SAP NetWeaver 7.5
  • SAP Web Application Server for SAP S/4HANA
  • IW_PGW add-on is installed on frontend (For additional details read KBA 2634691 - Task Gateway - Software components.)

Product

SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP Web Application Server for SAP S/4HANA all versions ; SAP enhancement package 1 for SAP NetWeaver 7.3

Keywords

SAP_GWFND, IW_PGW, /IWPGW/TGW, /IWWRK/WORKFLOW, passive substitution, HTTP request failed400, Bad Request, /IWBEP/CX_MGW_BUSI_EXCEPTION , KBA , OPU-BSC-TGW , Task Gateway , CA-INB-FIO , Fiori UI for My Inbox Application , Problem

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