Romilly

I wonder if anyone can help me. I'm trying to create a custom URL that I can track in GA4. I want to use URL mapping in SS to divert from the custom URL to a specific page so that I can track it in GA4 but after creating the URL using GA campain URL builder : https://www.rompompom.co.uk/?utm_source=email&utm_medium=email&utm_campaign=speaker0&utm_id=TATIM and then pasting it into URL mapping on SS there are errors shown in red where the &s are in the URL (see attached). Can anyone help? 🌈