Connect Google Tag Manager under Settings > Integrations and Adside can work with your container: reading tags, triggers and variables, and making changes like adding a conversion tag, through drafts and versions you can review in GTM.
Why it exists
Broken tracking is the most common reason ad accounts underperform quietly. With GTM connected, the agent can inspect what is actually firing when it investigates a conversion drop, instead of guessing, and can stage the fix.
Connecting
Click Connect on Google Tag Manager and sign in with an account that has container access.
Select the account and container for this client.
Changes go through GTM's own draft-and-publish workflow, so nothing lands on your site without a reviewable version.