We can advise you on best practices for implementing Google Analytics via Google Tag Manager. Using GTM is recommended as it will simplify event tracking, cross-domain tracking, and other features of Google Analytics.
Collect your marketing tags in the GTM interface to increase tagging efficiency. GTM will enable you to collect the data once on the page and send it to multiple tags, instead of collecting and sending the data separately for each tag. It will also give non-IT staff the ability to add and modify marketing tags throughout the site.
Google Tag Manager is designed to work best alongside a data layer containing all the necessary events and variables. We can help set up a data layer that ensures ease of implementation and maximum flexibility.