Before you cancel anything, confirm you own your ad accounts, website, domain, Google Business Profile, and data. Then overlap the two agencies briefly so campaigns and tracking never go dark. Ownership first, notice second. That order protects your results.
Most owners lose momentum the same way. They send the cancellation email on Friday, the agency pauses everything on Monday, and three weeks vanish while a new team rebuilds access and pixels. The switch is not the risk. The gap is.
Key Takeaways
- Verify ownership of every account before you give notice. Access someone grants you is not ownership.
- Export your historical data while the current agency is still active and cooperative.
- Overlap the old and new agency by two to four weeks so campaigns keep running through the handoff.
- Check the contract for notice period, auto renewal, and any clause about who keeps the accounts.
- Never pause active campaigns during a transition. Paused accounts lose learning and reenter the auction cold.
Why does switching agencies cost momentum in the first place?
Paid campaigns run on accumulated signal. Conversion history, audience data, and algorithmic learning all live inside the ad account. Start a new agency in a fresh account and that history is gone, so performance resets. Organic behaves the same way. A site that stops publishing, or loses its tracking mid transition, gives back progress that took months to earn. The fix is boring: keep the same accounts, keep campaigns live, and change only who holds the keys.
What should you own before you give notice?
Work through this list in one sitting. Open each platform yourself, using your own company email. Do not ask the agency to confirm ownership. Verify it with your own login.
- Domain registrar account and DNS control
- Website hosting account and CMS admin user
- Google Ads account, at admin level
- Meta Business Manager, listed as owner of the ad account and Page
- Instagram account credentials and its link to the Page
- Google Analytics 4 property, at administrator level
- Google Tag Manager container, with publish rights
- Google Search Console property, as owner
- Google Business Profile, as primary owner
- Email marketing platform and the contact list itself
- CRM records, including lead source data
- Call tracking numbers and recordings
- Creative source files, raw video, and photography licenses
- Landing pages, forms, and any booking tool connected to your site
- Reviews, which stay with your Google Business Profile and cannot be moved to a new one
Two items get missed most often. The first is Google Business Profile ownership, painful to recover once an agency has claimed it, so audit your Google Business Profile setup first. The second is historical data, which nobody misses until they need to answer one question: was last year better than this year?
Ownership versus access
Ownership means the account sits under your business entity, billed to your card, with your email as top level admin. Access means someone gave your email a seat inside their account. Access disappears the moment a relationship sours. Ownership does not.
Which asset should sit in whose name?
Use this table as your audit sheet. Go platform by platform and write down every item that fails the check. Each failure is a task to finish before you give notice.
| Asset | Who should own it | How to check |
|---|---|---|
| Domain name | You, in a registrar account under your company email | Run a WHOIS lookup, then log in to the registrar yourself. No login, no ownership. |
| Website files and CMS | You, as owner of the hosting account and CMS admin | Sign in as admin, add a second admin user, and download a full backup. |
| Google Ads account | You, under your own account ID, with the agency added as manager | Open Access and security. Confirm your email holds admin, not standard access. |
| Meta ad account and Page | Your Business Manager, with the agency added as a partner | In Business Settings, check that your business is the owner and the agency is a partner. |
| Google Analytics 4 | You, as property administrator | In Admin, open Property access management and verify you have Administrator. |
| Google Tag Manager | You, as container owner | In GTM Admin, open User management and confirm you can publish and add users. |
| Google Business Profile | You, as primary owner | Open Business Profile settings, then People and access, and check that you are labeled Owner. |
| Email platform and CRM | You, on a subscription billed to your company card | Check the billing page. If the agency is billed, the list is not portable on your terms. |
| Call tracking numbers | You, on your own account with the provider | Ask the provider in writing what a port out requires and who can authorize it. |
| Creative and brand assets | You, with source files delivered, not only exports | Request layered files, raw video, and font licenses in a drive folder you own. |
| Historical data and reports | You, exported before the last day of service | Pull campaign data, GA4 reports, and lead records while access is still live. |
| Landing pages and forms | You, on your domain or a subdomain you control | Check the URL. Pages on an agency subdomain disappear when the contract ends. |
What if the agency owns something you need?
It happens, especially with agencies that run clients inside their own ad account or host sites on a shared plan. Handle it calmly, in writing.
- Ask for the transfer by email while the relationship is still normal. Most agencies comply without drama.
- If an account cannot be transferred, request a full export: campaign structure, keyword and audience lists, conversion history, and creative files.
- Rebuild in an account you own and launch it before you shut anything off. Never leave a gap.
- For a site on agency hosting, request a backup of files and database, then migrate to hosting billed to you.
- If a request is refused, document it. Withholding your domain, reviews, or customer data is serious and worth a call with your attorney.
Refusals are rarely a surprise. They show up early as vague answers about access and reporting, one of the clearest red flags when hiring a marketing agency. Do not repeat the pattern with the next one.
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What does a clean transition plan look like?
This sequence keeps campaigns and tracking alive. Plan four to six weeks from decision to full handoff.
- Audit ownership. Log in everywhere yourself and confirm admin rights. Fix what you do not control.
- Read your contract. Find the notice period, the renewal date, and any clause about accounts or work product.
- Export everything. Pull campaign data, GA4 reports, lead records, and creative files into a folder you own.
- Sign the new agency first. Do this before you give notice, using a repeatable process for how to vet a marketing agency.
- Give notice with a clear end date. Confirm in writing what continues until that date and what stops.
- Grant access to the same live accounts. Same campaigns, same pixels, same history. No rebuild unless it is truly required.
- Run both teams in parallel. The outgoing agency maintains, the incoming agency documents and prepares changes.
- Verify tracking end to end. Submit a test lead and confirm it lands in GA4, the ad platform, and your CRM.
- Remove old access on the final day. Revoke seats, rotate shared passwords, and check for leftover third party tags.
- Set a thirty day review. Compare cost per lead and lead volume against your pre switch baseline.
That last step only works if you captured a baseline. If reporting is thin today, fix the measurement layer first so the new agency inherits real numbers. A simple framework for how to track marketing ROI is enough.
How long should the two agencies overlap?
Two to four weeks fits most small businesses. One week is too short for any handoff involving paid media. More than six weeks means paying twice. Keep the roles clear: the outgoing agency keeps campaigns running, the incoming agency audits and stages changes without launching them. The day after the old contract ends, the new team goes live.
In the first thirty days, require three deliverables from the new team: a written access audit, a documented baseline of cost per lead and spend by channel, and a tracking validation report. If they cannot produce those, you did not switch. You changed the logo on the invoice.
Frequently Asked Questions
How much notice do I have to give my marketing agency?
Most retainers require thirty days written notice, though sixty and ninety day terms exist, and many contracts auto renew annually. Read the termination clause before you plan anything. Note the renewal date too, since giving notice one day late can commit you to another full term.
Will I lose my campaign history if I switch agencies?
Not if you keep the same ad accounts. Conversion history, audiences, and algorithmic learning live in the account, not with the agency. You lose history only when a new team rebuilds inside a fresh account, which is why ownership matters more than any other item on your checklist.
When is the best time of year to switch agencies?
Avoid your peak season and any major promotion. Slower months give you room to absorb a short dip while the new team learns your business. If your busy season is unavoidable, extend the overlap and freeze structural changes until demand settles down.
Can my old agency take back my website or my Google reviews?
They cannot touch reviews if you are the primary owner of your Google Business Profile. A website is different. If it sits on their hosting, or on a proprietary platform they license, you may only be able to take the content. Verify both before you give notice.
Switching well is a project, not an email
Own your accounts, export your data, overlap the teams, and verify tracking before you close the door. Do those four things and a switch costs a few weeks of attention instead of a quarter of results.
Want a second set of eyes before you make the move? Book a meeting with the OCA11 team. We will review your ownership audit, tell you honestly what is worth keeping, and map the handoff so nothing goes dark.
