3484090 - Odata service activation failed with syntax error in class CL_NAT_GENERIC_MPC

Symptom

When activating a oData service an error occurs:

"Syntax error in class CL_NAT_GENERIC_MPC"

More detailed syntax error:

Public Section - CL_EQ_BICS_GW_DT

'The type "TT_SEL_ANNOTATION" is unknown, but there are the following types with similar names: "TT_ANNOTATION", "TSX_ANNOTATION", and "TY_ALL_ANNOTATION".'

Environment

SAP NetWeaver 7.56 up to SP1

Product

SAP S/4HANA 2021

Keywords

oData, syntax error, oData syntax error, CL_NAT_GENERIC_MPC, type "TT_SEL_ANNOTATION" is unknown, TT_SEL_ANNOTATION, CL_EQ_BICS_GW_DT , KBA , BW-BEX-OT-BICS-EQ , oDATA Query / (Easy Query) , BW4-AE-API-ODAT , OData , Problem

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