New Customer Onboarding Checklist for Marketing Agencies
Marketing agency leads move fast: one missed call during a client meeting can mean a $5,000–$50,000 campaign goes to a competitor. This checklist gives you a repeatable way to capture the right info, qualify fit, set scope, and get to a first “real” deliverable (audit, strategy, or launch task) without chaos.
1) First Contact (Call, Form Fill, or DM) — Capture + Qualify in 10 Minutes
2) Fit Call + Discovery — Confirm Fit, Scope, and the “First Win” Deliverable
3) Proposal, SOW, and Payment — Lock Scope and Prevent Scope Creep
4) Client Intake + Access Setup — Get Tools, Data, and Brand Inputs Without Chaos
5) Pre-Job Prep + Scheduling — Build a Clean Launch Plan and Protect Your Deep Work
6) Day-Of Launch + Post-Job Follow-Up — Confirm Results, Next Steps, and Recurring Service
Pro Tips
- 1.Build a “Platform Access Pack” email template with direct links to add you in Google Ads, Meta Business Manager, GA4, and Search Console. Clients stall less when the next click is obvious.
- 2.Keep a “Launch Emergency” playbook for common agency fires: Meta ad disapprovals, learning limited, tracking not firing, Shopify checkout issues, and site downtime. Include who to call and what screenshots to grab.
- 3.For retainers, define your monthly cadence in writing: Week 1 reporting + insights, Week 2 testing plan, Week 3 creative refresh, Week 4 optimization + next month strategy. Clients stay when they know what’s coming.
- 4.Always require a single approver. If three stakeholders approve ads by committee, you’ll lose days and miss launch dates.
- 5.Use a one-page creative brief for every ad set or landing page: audience, offer, hook, proof, CTA, and required disclaimers. It keeps writers and designers aligned and speeds revisions.
Frequently Asked Questions
What’s the minimum info you need before a Discovery Call?
Get their goal, timeline (especially launch dates), budget range (retainer $2k–$20k/mo or project $3k–$50k), decision maker, and current channels (Google Ads, Meta, SEO, email). That’s enough to know if it’s worth a 45-minute call.
What access do you need on day one for paid media?
At minimum: Google Ads or Meta Business Manager admin/partner access, GA4 viewer/admin, Tag Manager access, and confirmation that conversions are set (purchase/lead). If they use a CRM like HubSpot, get access to see lead quality and pipeline stages.
How do you prevent scope creep on a monthly retainer?
Define what’s included each month (channels, number of campaigns, creative cadence, reporting) and add a clear change-order rule for extras like new landing pages, extra email flows, or additional ad accounts. Put it in the SOW and reference it in kickoff.
What should you deliver as the first “win” to build trust fast?
Pick something concrete and visible within 7–14 days: a tracking/attribution audit, a cleaned-up campaign structure, a new landing page draft, or brand concept round 1. Avoid vague promises like “we’ll optimize” as your first milestone.
How do you handle urgent client issues without being on call 24/7?
Set escalation rules in kickoff: what counts as urgent (site down, ad account suspended, spend spike), where to report it, and your response window. For everything else, route requests through your project board and weekly check-in.
When should you push for a recurring retainer after a one-off campaign or website project?
During the First Review call. Show a 30/60/90-day plan that includes ongoing testing, creative refresh, and reporting. Tie the recommendation to their budget and goals so it feels like the logical next step, not an upsell.
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More Resources for Marketing Agencies
After-Hours Guide
Handle calls outside business hours effectively
Business Hours Optimization
Optimize when and how you answer calls
Call Handling Best Practices
Handle every call like a pro from ring to close
Client Retention Scripts
Keep customers coming back with follow-up calls
Communication Checklists
Step-by-step customer communication guides
Complaint Handling Scripts
Turn complaints into loyalty with the right words
Emergency Call Protocol
Triage and handle urgent calls effectively
Lead Response Templates
Follow-up templates that close more jobs
Missed Call Cost Analysis
Calculate the real cost of every missed call
No-Show Follow-Up Templates
Recover missed appointments professionally
Phone Etiquette
Make great first impressions on every call
Phone Scripts
Ready-to-use call scripts for every scenario
Phone Setup Guide
Configure your business phone system right
Pricing Inquiry Scripts
Handle price questions without losing leads
Review & Referral Scripts
Get more 5-star reviews and referrals
Scheduling Tips
Smart appointment scheduling strategies
Seasonal Call Guide
Plan for peak and slow call seasons
Upselling & Cross-Selling Guide
Increase revenue naturally during service calls
Voicemail Greetings
Professional voicemail scripts that set expectations