1947351 - Could not make connection to BW source system + DYNPRO_SEND_IN_BACKGROUND

Performing one of the following steps

• Calling the F4 help in an Infopackage or
• Customizing an extractor in the context of the specific source system in transaction RSA1 or
• Calling the source system in the monitor via menu 'Environment' --> Job overview / Short dump -> In the source system
• Activate or restore an already existing source system

ends with an error in your BW system:
"Could not make connection to source system XXX".
or
"Screen output without connection to user"

Additionally, runtime error DYNPRO_SEND_IN_BACKGROUND occurs in the corresponding source system.

Alternatively this error can show up in the status bar:

"Error in remote call of destination <internal_destination_of_source>: Cannot process unicode RFC call in non-unicode system (for details see note 875767#)"

SAP Netweaver All Versions

SAP BW/4HANA

DYNPRO_SEND_IN_BACKGROUND; sm59; BP_JOB_SELECT , KBA , saplsdh4 , display_list , rspc_api_get_chains , BW-WHM-DST , Data Staging , BC-BW-ODP , Operational Data Provisioning (ODP) and Delta Queue (ODQ) , BW4-DM-SRC-ODP , ODP Source System , BW-WHM-DST-SRC , Source Systems , How To