Hi there!
I am having issue when I run the Publish to Tableau Server tool and no idea how to resolve it.
The error message I got based on the result pane after run is "Error: Publish to Tableau Server (7): TableauServer.UploadChunks (238): Iteration #1: Tool #11: Error transferring data: URL using bad/illegal format or missing URL".

This is how I configure the tool for your references.
1. Sign in to Tableau Server

2. Configure data source

The input is just a testing data in a text box:

Tableau Server Version: 2020.3.3
Alteryx Version: 2021.1.4.26400
Publish to Tableau Server tool version: 2.2.0