I need to create a taxonomy column as a site column in a site collection programmatically with REST. I only have access to REST (via flow) , I have no development capabilities besides rest.

I can create a normal column (Text, number etc) very easily with /_api/Web/Fields/createfieldasxml but with a metadata column we need a type called 'Notes' which I get an error of not well formed JSON when I attempt this.

Has anyone achieved this using REST calls ?

  • anybody any know-how ??? Jan 16, 2020 at 13:43
  • Maybe post a copy of the headers and sample body you are using so someone can take a stab at it in their own environment?
    – willman
    Jan 20, 2020 at 17:24

1 Answer 1


Figured it out..

var ctx = SP.ClientContext.get_current();  
    var web = ctx.get_web();  
    var fields = web.get_fields();  
    field = fields.getByInternalNameOrTitle("SessionTopics");  
    txField = ctx.castTo(field, SP.Taxonomy.TaxonomyField);  

Grab your site column Cast it to a taxonomyfield update the termstoreID, termsetID (get these from taxonomy page in sharepoint) and then do the usual executequery. DONE!

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