Hi, I am using ArcGIS 10.2.1 (but have also tested it on 10.2). I created a new Mosaic Dataset at d:\test\test.gdb\test. I tried to use the arcpy.SetMosaicDatasetProperties_management() function to try and set *any* properties in the MD. It runs and says "Success". But no properties are updated. Here are some examples of what I have tried: arcpy.SetMosaicDatasetProperties_management("D:/test/test.gdb/test","4100","15000","None;JPEG;LZ77;LERC","None","75","0.01","BILINEAR","NOT_CLIP","FOOTPRINTS_MAY_CONTAIN_NODATA","CLIP","NOT_APPLY","#","NONE","NorthWest;Center;LockRaster;ByAttribute;Nadir;Viewpoint;Seamline;None","NorthWest","#","#","ASCENDING","MAX","0","600","300","20","0.8","30 30","BASIC","Name;MinPS;MaxPS;LowPS;HighPS;Tag;GroupName;ProductName;CenterX;CenterY;ZOrder;Shape_Length;Shape_Area","DISABLED","#","#","#","#","20","1000","GENERIC","25") arcpy.SetMosaicDatasetProperties_management(in_mosaic_dataset="D:/test/test.gdb/test",minimum_pixel_contribution=25) arcpy.SetMosaicDatasetProperties_management(in_mosaic_dataset="D:/test/test.gdb/test",rows_maximum_imagesize=10000) None of these had any effect on the mosaic dataset. And actually neither did running the tool from the Toolbox. I tried on a MD with images in it too (not empty). Same result. Has anyone had any luck using this function? Layth
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