https://www.infopathdev.com:443/forums/41.aspxIf you're not sure where to ask your question, ask it here. If necessary, our moderators will make sure it gets classified in the correct board.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/73960.aspxFri, 13 Jan 2012 15:01:35 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:73960tnelson0https://www.infopathdev.com:443/forums/thread/73960.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=73960deleted the form form the server. then able to delete the column. published old form with no reference to old column. fixed.https://www.infopathdev.com:443/forums/thread/73898.aspxThu, 12 Jan 2012 18:06:04 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:73898tnelson0https://www.infopathdev.com:443/forums/thread/73898.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=73898"The SharePoint list form can't be customized with InfoPath because fields of an unsupported data type are marked as required, or because fields are corrupted. In SharePoint, try deleting the columns or editing the column properties to remove the required attribute. - my_fieldname (Lookup)" IN the field in infopath it says "the lookup field is not valid because the reference list or list column does not exist. delete the field and recreate it."