In ArcGIS Field Maps, downloading a datum transformation for a location profile fails, and the following error message is returned:
Error: Datum transformation failed to download
The Canadian Spatial Reference System (CSRS) files are not available in ArcGIS Field Maps and must be obtained manually. This issue is documented in BUG-000149918, which occurs to all transformations that include the CSRS.
Manually load the desired datum transformation from ArcGIS Coordinate Systems Data into the ArcGIS Field Maps app. ArcGIS Coordinate Systems Data is a separate download and installation from the main product, ArcGIS Pro. The transformation files can be inserted into the following folders:
Use the Files app and insert the file into the PEData folder.
Refer to ArcGIS Field Maps: Grid-based transformations and ArcGIS Pro: Install supplementary coordinate system files for more information.