topic How to update field properties with Model Builder in Developers Questions https://community.esri.com/t5/developers-questions/how-to-update-field-properties-with-model-builder/m-p/233451#M1458 <HTML><HEAD></HEAD><BODY><P>Helo everyone,</P><P></P><P>How can I update the property "Allow NULL values" of a field with Model builder?</P><P></P><P>I need to change this property several feature classes from No to Yes.</P><P></P><P>Thank you</P></BODY></HTML> Mon, 13 Jul 2015 13:31:54 GMT JoseSanchez 2015-07-13T13:31:54Z How to update field properties with Model Builder https://community.esri.com/t5/developers-questions/how-to-update-field-properties-with-model-builder/m-p/233451#M1458 <HTML><HEAD></HEAD><BODY><P>Helo everyone,</P><P></P><P>How can I update the property "Allow NULL values" of a field with Model builder?</P><P></P><P>I need to change this property several feature classes from No to Yes.</P><P></P><P>Thank you</P></BODY></HTML> Mon, 13 Jul 2015 13:31:54 GMT https://community.esri.com/t5/developers-questions/how-to-update-field-properties-with-model-builder/m-p/233451#M1458 JoseSanchez 2015-07-13T13:31:54Z Re: How to update field properties with Model Builder https://community.esri.com/t5/developers-questions/how-to-update-field-properties-with-model-builder/m-p/233452#M1459 <HTML><HEAD></HEAD><BODY><P>Use the Alter Field (Data Management) tool</P><P></P><P><STRONG>​Alter Field</STRONG></P><P><A href="http://desktop.arcgis.com/en/desktop/latest/tools/data-management-toolbox/alter-field-properties.htm">http://desktop.arcgis.com/en/desktop/latest/tools/data-management-toolbox/alter-field-properties.htm</A></P></BODY></HTML> Mon, 13 Jul 2015 14:34:21 GMT https://community.esri.com/t5/developers-questions/how-to-update-field-properties-with-model-builder/m-p/233452#M1459 FreddieGibson 2015-07-13T14:34:21Z