2937963 - Transaction Launcher stops working and gives error "Screen Output without connection to user"

• When using Transaction Launcher in the CRM Web UI to open an ERP transaction via RFC (Remote Function Call), the launcher fails, and gives an error in the web ui: Screen Output without connection to user.
• There is also a dump triggered in the ERP backend system:
  

  Runtime Errors DYNPRO_SEND_IN_BACKGROUND

  "DYNPRO_SEND_IN_BACKGROUND"
  "SYSTEM-EXIT"

  Transaction......... IC_LTX
  Call program...........SAPLIC_LTX
  Function module..... WCF_LTX_EWB_PROC_CREATE_RFC

• The issue can start to occur after change the RFC user in ERP from a Dialog user to a System or Service user

Read more...

• SAP Customer Relationship Management (CRM)
• SAP enhancement package for SAP CRM
• SAP enhancement package for SAP CRM, version for SAP HANA

SAP Customer Relationship Management 7.0 ; SAP Customer Relationship Management 7.0 on SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP ERP all versions ; SAP enhancement package for SAP CRM all versions ; SAP enhancement package for SAP CRM, version for SAP HANA all versions

Dialog, System, Service, SAPGUI, SAP GUI, SAP_ALL , KBA , CA-WUI-APF , Application Frame , Problem