Add the suffix ?utm_source=tiktok to your booking webpage link.

For example, if your booking URL is:

https://inline.app/booking/-N-1h3m9ii-uualSN-Ru:inline-live-2/-inlinetest

Change it to:

https://inline.app/booking/-N-1h3m9ii-uualSN-Ru:inline-live-2/-inlinetest?utm_source=tiktok

Place the modified link on your Tiktok profile/post. For more details, can refer this link.

After customers make a booking through tiktok link, inline app/daily report will display the corresponding source.