Hi @Giacomo Matrone, I improved documentation in order to help with this issue that you had: it was probably impossible to understand what "id" and "ref" meant. Could you please go over the PR or over the TagCreation schema in the generated docs, and tell us if this would have helped you? I really hope we resolved the issue.

Hi, sorry for the late reply, but had quite a move back to Italy. I added some more detail to your description. However, the issue is really obscure.