The ST_Transform function fails and returns the error message “ORA-20002: Error converting spatial reference (SHAPE2)” when using a custom spatial reference identifier (SRID) and geogtran well-known ID (WKID) in databases stored on Linux environments.
ArcMap is in mature support, and ArcGIS Pro 2.7 is retired. If this issue affects workflows in a supported release of ArcGIS Pro, please contact Esri Technical Support for assistance.