Hi @szymon_dybczak and @WiliamRosa,

I have used backticks from the very start (you'll see it if you re-check my original post).

It is definitely a cluster issue as I am able to assign tags using serverless cluster. The reason I was using a dedicated one is because I was pulling data from an excel on a sharepoint location, and this is not working with serverless. 

So in the end I will make a two-step job. First with dedicated cluster that will store all the tags into a table and the second one with serverless that will do the assignment.

Thank you both for the time and effort!

KR,
Stefan