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Hello,
I am trying to transform a point cloud with ellipsoidal heights (WGS84) to DHHN2016 heights using EsriReprojector. However, only "None" can be selected for "Vertical Transformation". (see picture)

Why is this the case and what can I do to make the transformation work?
Thank you very much

Hi @787d, welcome to the FME Community! 
I’ll reference @daveatsafe’s answer from a similar thread here: 
The EsriReprojector is limited to the vertical transformations included with ArcGIS. According the Esri documentation at https://pro.arcgis.com/en/pro-app/latest/help/mapping/properties/pdf/geographic_transformations.pdf, ArcGIS only seems to include vertical transformations from the Newlyn vertical coordinate system to ETRS89 or EVRF2019.

I hope this helps and let me know if you have any questions!

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