I created a polygon shapefile in QGIS. Projection was saved as EPSG: 3857, WGS 84 / Pseudo Mercator.
When I open this shapefile in ArcMap the projection sets itself as WGS_84_World_Mercator which I believe is also EPSG: 3857.
The issue is my polygons are several hundred metres to the north of where they should be when overlaid on the OpenStreetMap base map.
Does anyone know of this projection issue and the link this has to taking files created in QGIS and bringing them into ArcMap?