3531431 - SADL (CDS) based OData : Do not use conversion exit XXXX here

SADL (CDS)  based OData service hitting error like:

frontend error:

.ERROR_CONTEXT    
..ERROR_INFO    Do not use conversion exit XXXX here.
..ERROR_RESOLUTION    
...SAP_NOTE    See SAP Note 1797736 for error analysis
...LINK_TO_SAP_NOTE    https://service.sap.com/sap/support/notes/1797736
..Exceptions    
.../IWFND/CX_MGW_TECH_EXCEPTION    
....Text    Do not use conversion exit XXXX here.
....Attributes    
.....GC_STATUS_INTERNAL_ERROR    500
.....GC_STATUS_NOT_IMPLEMENTED    501
.....GC_STATUS_SERVICE_UNAVAILABLE    503
.....HTTP_STATUS_CODE    500
.....REMOTE_ERROR_UNLIMITED    Do not use conversion exit XXXX here. 

backend error:

.ERROR_CONTEXT    
..ERROR_INFO    Do not use conversion exit XXXX here.
../IWBEP/CX_MGW_MED_EXCEPTION    
...CLASS_NAME    
...CLASS_TXT_ELEMENT_ID    
...CONVERSION_NAME    
...ELEMENT_NAME    
...ENTITY_2_NAME    
...ENTITY_3_NAME    
...ENTITY_ID    
...ENTITY_NAME    
...FIELD_NAME    
...INCLUDE_STRUCTURE    
...INTERFACE_NAME    
...LENGTH    0
...MESSAGE_UNLIMITED    
...OBJECT_MODEL_NAME    
...OBJECT_MODEL_VERSION    0000
...OBJECT_NAME    
...PROPERTY_NAME    
...SERVICE_NAME    
...SERVICE_VERSION    0000
...STRUCTURE_NAME    
...TAG_ID    
...TYPE    
...USERNAME    
...VOCAB_CON_EXP_OPERATOR    
...VOCAB_CON_EXP_PARAMETER_COUNT    
...VOCAB_ID    
...VOCAB_VERSION    0000
...VOCAN_TECH_NAME    
...VOCAN_VERSION    0000
...TYPE_KIND    
...RETURN_CODE    
..CX_SADL_EXPOSURE_ERROR    
...AKH_COMPONENT    
...NODE_NAME    
...OBJECT_NAME    
...ENTITY    
...PROPERTY    
...IF_T100_MESSAGE.T100KEY    
....MSGID    SY
....MSGNO    530
..CX_SADL_EXPOSURE_ERROR    
...AKH_COMPONENT    
...NODE_NAME    
...OBJECT_NAME    
...ENTITY    ZC_PROFITLOSS_LUME
...PROPERTY    FISCALYEARPERIOD
...IF_T100_MESSAGE.T100KEY    
....MSGID    SADL_GW_EXPOSURE
....MSGNO    060
....ATTR1    ENTITY
....ATTR2    PROPERTY
..CX_SADL_GW_EXPOSURE_EXIT    
...CONVEXIT    PERI7
...IF_T100_MESSAGE.T100KEY    
....MSGID    SADL_GW_MODEL
....MSGNO    004
....ATTR1    CONVEXIT
...IF_T100_DYN_MSG.MSGV1    
...IF_T100_DYN_MSG.MSGV2    
...IF_T100_DYN_MSG.MSGV3    
...IF_T100_DYN_MSG.MSGV4    
...IF_T100_DYN_MSG.MSGTY    
..SERVICE_INFO     

REST Integration for CDS and BOPF via SADL.
SAP Gateway (OData).

SAP S/4HANA, Conversion Exit Error, OData services, CDS View, ZI_HDW_PROFITANDLOSSACTUAL, PERI7, REST Integration, BOPF, SADL, Do not use conversion exit, CX_SADL_EXPOSURE_ERROR, CL_SADL_GW_GENERIC_MPC, PERI7 , KBA , OPU-GW-COR , Framework , BC-ESI-ESF-GW , REST Integration für CDS und BOPF via SADL , Problem