I'm looking for an expert to set up Google Tag Manager to track sales conversions on my e-commerce website. Key Requirements: - Implement GTM on my e-commerce site - Set up tags for tracking sales conversions - Ensure accurate data collection and reporting - Provide documentation for managing GTM Ideal Skills: - Proficiency in Google Tag Manager - Experience with e-commerce tracking - Strong analytical skills - Familiarity with data layer concepts Please share relevant experience and approach.