Hand over admin access to ad accounts, analytics, CRM and domain records in week one, plus your last 12 months of spend-to-closed-revenue data and your three best and three worst customers by name. Hold back your billing credentials, your domain registrar, and the right to approve offer or pricing changes. Access is lent; ownership is not.
By Avi Vatsa, CEO, Exchange Four Agency. Avi leads the team that installs and runs AI-leveraged revenue systems for owner-led companies. His background spans law, technology, and marketing; he also co-founded Dialora, an AI voice-agent platform for automated lead capture and booking. (Marketer of the Day #1411, Jeremy Ryan Slate Show)
Why does week one decide what month three looks like?
Because the data you hand over in week one is the data your month-three report is built from. If nobody transfers the link between a lead source and a closed deal, no dashboard will invent it later. That's the accountability gap in one sentence, and it's not rare: an industry survey distributed via Businesswire found 71% of brands are frustrated demonstrating marketing ROI effectiveness. Most of that frustration is installed during onboarding, not discovered at the quarterly review.
There's a second reason, and it's the one owners underestimate. The transition work tends to fall on you. A real G2 reviewer described an agency whose "inability to help solve issues... made it so we ended up doing much of the transition ourselves." An onboarding checklist is partly a competence test: hand it over, see who drives it. The agency that asks for your closed-revenue data in week one and the agency that asks for your logo files in week one are not the same agency.
What should you hand over in week one?
Work through this in order. The first four unblock everything else.
- Admin-level access, not user-level. Google Ads, Meta Business Manager, LinkedIn, GA4, Google Search Console, Google Tag Manager, your CRM, your email platform, your call tracking. Grant via your accounts with them added as users — never by handing over a password. If an agency asks you to create accounts under their umbrella, that is a red flag you can read about in marketing agency red flags.
- Twelve months of spend, by channel, by month. Actual invoiced spend, not budgeted.
- Twelve months of closed revenue, with source where you have it. Even messy. Even if source is blank on half the rows. The gaps are themselves the finding.
- A CRM export of every lead in the last 12 months with created date, source, stage, owner, and close date. This single file answers more diagnostic questions than any discovery call.
- Your pricing, your margins by service line, and your average deal size. An agency optimizing for lead volume without knowing margin will drive you volume you can't profitably serve.
- Named customers: three best, three worst. Best meaning most profitable and most pleasant, worst meaning the ones who ate your team alive. Message is built from this, not from a persona template.
- Sales call recordings. Ten is enough. Objection language is where offer copy comes from.
- Everything your previous agency built. Ad accounts, audiences, landing pages, email sequences, creative source files, tracking configuration. If you're unsure what you're entitled to take, read who owns your marketing assets when you leave an agency before the old relationship closes out.
- Brand assets and legal constraints. Logos, fonts, approved claims, regulated language, anything compliance won't let you say.
- One named decision-maker — probably you — and a standing weekly slot. Write it in the calendar in week one or it won't exist in week six.
What should you hold back?
| Hold back | Why | What to grant instead |
|---|---|---|
| Domain registrar login | A lost domain is an existential event, not a marketing problem | DNS record changes you execute, or a delegated subdomain |
| Billing method on ad accounts | Keeps spend authority with the person carrying the number | Your card on your account, agency as admin user |
| Website hosting root / CMS superadmin | Protects your ability to fire anyone on any Tuesday | Editor or publisher role, staging environment access |
| Approval over pricing and offer changes | The offer is the business, not a campaign variable | A proposal process with your sign-off |
| Customer PII beyond what's needed | Contractual and regulatory exposure sits with you | Hashed lists, or a documented DPA |
| Sole ownership of any new account | Day-one prevention of hostage situations | Co-ownership written into the contract |
None of this is adversarial. It's the difference between lending access and surrendering control, and good agencies prefer the clean version — it means nobody argues about it at the exit. The clauses that enforce this belong in the agreement, which is covered in marketing agency contract terms.
What should the agency hand over to you in week one?
Onboarding runs both directions, and the reverse list is shorter but more revealing. You should receive, inside seven days: the names and roles of everyone who will touch the account, the weekly meeting cadence in writing, the specific metric each party owns, and the date of the first report that includes a revenue line. If you get a welcome deck and a Slack invite instead, you have learned something early.
"They know exactly how to connect marketing execution to real business outcomes." — Riggs Eckleberry, Chairman, OriginClear
That connection is a week-one decision. It's built when someone maps lead source to closed revenue in your CRM, and it cannot be retrofitted in month three from data that was never captured. Our own view on this is plain: a deliverable is a result you can point to, not activity or a slide.
What does the coordination cost look like if you skip this?
Running the handover badly is expensive in a way that never appears on an invoice. Industry vendor-management research puts coordination overhead at 8–15% of annual vendor spend in hidden internal labor, with businesses reporting roughly 30% higher total cost when working across multiple point-solution vendors versus one integrated partner. Every ungranted access, every missing export, every "who owns tracking?" email is a withdrawal from that account. We broke the arithmetic down in what using multiple marketing vendors actually costs.
The owner-side fix is unglamorous: do the handover once, properly, in a single week, with one shared document and one owner on each line item. Two days of your attention in week one buys back weeks of chasing in month three.
How do you know onboarding actually worked?
Set the test before you start. By day 30 you should be able to open one report and see spend, leads, qualified leads, opportunities and closed revenue in the same view, even if the numbers are ugly. By day 90 you should be able to see which source produced which dollars. Ugly-but-connected beats polished-but-disconnected every time — see what a marketing agency should deliver in the first 90 days and the metrics to demand every month.
If you're mid-switch and the old relationship is still winding down, sequence matters more than speed. How to switch marketing agencies without losing a quarter covers the overlap period specifically, including which accounts to retain before you give notice.
A plan handed over is not a system installed. The handover is where that distinction first becomes visible — covered further in why a marketing plan isn't the same as a marketing system. Though much of it is decided earlier, in how to review a marketing agency proposal: what it commits them to, and what it quietly leaves out. And earlier still, in the marketing agency scope of work: how to write one that buys results, not activity. Run the checklist. Watch who drives it. That tells you most of what the next twelve months will look like.
What do you hand over when the agency also hosts your site?
Hosting access is the one handover where you should never give up ownership — only access. If the agency is taking over hosting or migrating your site onto their infrastructure, the domain registrar account, the DNS zone, and the SSL certificate renewal should stay in accounts you control and pay for. Add the agency as a user. Do not transfer the asset.
The practical version: keep your domain at your own registrar (Cloudflare, Porkbun, whoever) under a billing card you own, point the nameservers wherever the agency needs them, and give the agency delegated access to the DNS records they manage. If they need a staging subdomain, create a CNAME for them rather than handing over zone control.
The reason is recoverable in a single sentence from anyone who has lived through it: when a hosting relationship ends badly, the party holding the domain holds the business. An agency that registered your domain in their own account during onboarding can, deliberately or through simple administrative inertia, leave your site dark for the 5 to 7 days a registrar transfer dispute typically takes — and ICANN's 60-day transfer lock after any registrant change means a domain moved into their name in week one cannot be moved back out until week nine.
Three things to get in writing before the first DNS change: who pays the hosting bill and on whose card, what the backup schedule is and where backups are stored (a copy in your own S3 bucket or Drive, not only theirs), and what the exit process looks like — specifically, how many days to produce a full site export and database dump after a termination notice. Fourteen days is reasonable. "We'll work something out" is not. If you are the one giving notice later, how to terminate a marketing agency contract covers the order of work.