3245647 - Dump CALL_FUNCTION_NOT_ACTIVE happens when calling SPAU.

The following dump happens when calling transaction SPAU:
Runtime Errors         CALL_FUNCTION_NOT_ACTIVE
Except.                CX_SY_DYN_CALL_ILLEGAL_FUNC

 Short Text
     The function module is not active or does not contain any code.

...

Error analysis
    An exception has occurred in class "CX_SY_DYN_CALL_ILLEGAL_FUNC". This
     exception was not caught
    in procedure "STARTUP" "(METHOD)" or propagated by a RAISING clause.
    Since the caller of the procedure could not have anticipated this
    exception, the current program was terminated.
    The reason for the exception occurring was:
    The reason for the exception is:
    An attempt was made to execute the CALL FUNCTION statement in program
    "SAPLSPAU_UI". The name of the function module to be called is
     "SPAU_ASK_FOR_NEW_PROTOCOL".
    ""SPAU_ASK_FOR_NEW_PROTOCOL" cannot be found in its function group though.

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ABAP system

SAP ERP 6.0 ; SAP NetWeaver 2004 ; SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP S/4HANA 1610 ; SAP S/4HANA 1709 ; SAP S/4HANA 1809 ; SAP S/4HANA 1909 ; SAP S/4HANA 2020 ; SAP S/4HANA 2021 ; SAP S/4HANA 2022 ; SAP S/4HANA 2023 ; SAP S/4HANA, on-premise edition 1511 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0 ; SAP enhancement package 3 for SAP NetWeaver 7.0

SPAU_ASK_FOR_NEW_PROTOCOL, function group,CALL_FUNCTION_NOT_ACTIVE, SPAU , KBA , BC-DWB-CEX , Customer Extensions , Problem