Marketeers 👋 what's your preferred method of dealing with bulk UTM parameters?

Our performance marketing team (a team of 2) was talking about the workflow of links, specifically in agile performance marketing campaigns where there are frequent changes and adaptations. Since there is a lot of copying and pasting involved there are a million ways to make an error ❌, so it's even more important to cross-check URLs before launching any campaigns 🫣. We made an internal tool for URL creation https://www.diligentstudios.com/... which we use with Google Sheets and Airtable to store the actual values combined with expressions to somewhat automate the process. Then comes the part of manual testing and verifying each link before the campaigns. What are your thoughts on this? Is this something you and/or your team struggle with too? 🧐