Why UTM consistency matters more than the tool itself
UTM parameters are just five URL query string fields, but the value comes entirely from using them consistently — analytics platforms group traffic by the exact source/medium string, so "Facebook" and "facebook," or "cpc" and "paid-social," silently split what should be one reporting channel into several fragments. This tool exists mainly to enforce one convention per platform rather than to save typing: pick a preset, and the source/medium fields autofill with the values we use across our own accounts, so a campaign tagged today reports the same way as one tagged six months from now.
The lowercase-and-dash sanitization toggle exists for the same reason — a stray capital letter or space (which URL-encodes as %20) is the single most common way a campaign accidentally becomes two rows in a report. Recent links are kept only in this browser tab's memory for your convenience during a single tagging session; nothing is saved to your device or sent anywhere, so refreshing the page clears the list.
For the WhatsApp preset specifically: remember that UTM tags belong on the link leading a user to a WhatsApp conversation (a bio link, a landing page button), not on the wa.me link itself, since WhatsApp doesn't read query parameters. Our WhatsApp click tracking guide covers that distinction in detail, and Google Ads (SEM) covers the paid search side of campaign tracking end to end.