I would like to know how it is possible to add site columns to an existing list/library using Nintex?
I believe you need to use the webs.asmx web service, along with the 'GetColumns' method to extract a schema of the site columns to XML, you then use the schema of the fields you want to add and pass this data to the 'UpdateList' method.
I can get the complete schema but I am struggling to get only the data I need to pass to the 'UpdateList' method.
Can anyone help please, with an example? Maybe there is an easier way to accomplish this task?