2872400 - CALL_FUNCTION_SEND_ERROR dump in ABAP Program /IWWRK/SAPLWF_TGW

Symptom

CALL_FUNCTION_SEND_ERROR dumps are occurring (ST22 transaction) in backend system, but the users are not experiencing any error on gateway (frontend) side.

Category               ABAP programming error
Runtime Errors         CALL_FUNCTION_SEND_ERROR
ABAP Program           /IWWRK/SAPLWF_TGW
Application Component  OPU-BSE-WFM

Short text

" " (I/O error)

What happened?

CPIC-CALL: 'ThCMSEND', communication rc: CM_DEALLOCATED_NORMAL (cmRc=18),taskhandler rc: SAP_O_K (thRc=0) Statistics not active                                       
                                                                                                  
An error occurred while making a Remote Function Call.

Source Code Extract

>>>>> FUNCTION /iwwrk/wf_tgw_query_tasks.   

Environment

Task Gateway
Gateway Business Workflow Enablement
SAP NetWeaver
SAP Web Application Server for SAP S/4HANA
ABAP PLATFORM - Application Server ABAP
SAP Gateway

Product

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

Keywords

Internal error code... "RFC_IO5", The termination occurred in ABAP program or include "/IWWRK/SAPLWF_TGW", in "/IWWRK/WF_TGW_QUERY_TASKS". The main program was "SAPMSSY1", In the source code, the termination point is in line 1 of program or
include "/IWWRK/LWF_TGWU01", /IWWRK/LWF_TGWU01, /IWWRK/WF_TGW_QUERY_TASKS, SAPMSSY1, TASKPROCESSING, version 2, Service Doc.Identifier, Ext. Service Name, Version, Set Error Tolerance for OData Services for MOC, SAP NetWeaver,
SAP Gateway, OData Channel, Composition , KBA , OPU-BSE-WFM , Gateway Business Workflow Enablement , OPU-GW-COR , Framework , OPU-BSC-TGW , Task Gateway , Problem

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