topic Re: Trying to find TFWKID for transforming to OSGB 27700 in ArcGIS Web AppBuilder Questions https://community.esri.com/t5/arcgis-web-appbuilder-questions/trying-to-find-tfwkid-for-transforming-to-osgb/m-p/232140#M6248 <HTML><HEAD></HEAD><BODY><P>Try this :</P><P></P><P>D_OSGB_1936</P></BODY></HTML> Tue, 24 Jul 2018 14:16:05 GMT KrzysztofLadny2 2018-07-24T14:16:05Z Trying to find TFWKID for transforming to OSGB 27700 https://community.esri.com/t5/arcgis-web-appbuilder-questions/trying-to-find-tfwkid-for-transforming-to-osgb/m-p/232139#M6247 <HTML><HEAD></HEAD><BODY><P>I want to use the OSGB as my co-ordinate system for display in my app, rather than Lat Long WGS84. I've added OSGB using WKID 27700, but can't work out which TFWKID to use. I did a search on the Datum Transformations page (<A class="link-titled" href="https://developers.arcgis.com/rest/services-reference/datum-transformations.htm#GUID-B614700A-23E1-4FEA-AE60-4D1C4366EA6A" title="https://developers.arcgis.com/rest/services-reference/datum-transformations.htm#GUID-B614700A-23E1-4FEA-AE60-4D1C4366EA6A">Datum transformations—ArcGIS REST API: Services Directory | ArcGIS for Developers</A>) but the two that refer to Ordnance or Newlyn both yield an error message. I've also tried Googling without success. I'm sure it's simple if you know it, but I don't.</P><P>Thanks&nbsp;</P></BODY></HTML> Wed, 14 Feb 2018 11:50:31 GMT https://community.esri.com/t5/arcgis-web-appbuilder-questions/trying-to-find-tfwkid-for-transforming-to-osgb/m-p/232139#M6247 SimonCrutchley 2018-02-14T11:50:31Z Re: Trying to find TFWKID for transforming to OSGB 27700 https://community.esri.com/t5/arcgis-web-appbuilder-questions/trying-to-find-tfwkid-for-transforming-to-osgb/m-p/232140#M6248 <HTML><HEAD></HEAD><BODY><P>Try this :</P><P></P><P>D_OSGB_1936</P></BODY></HTML> Tue, 24 Jul 2018 14:16:05 GMT https://community.esri.com/t5/arcgis-web-appbuilder-questions/trying-to-find-tfwkid-for-transforming-to-osgb/m-p/232140#M6248 KrzysztofLadny2 2018-07-24T14:16:05Z