How to Change Google Ads Agency Without Losing Data

1. What you actually risk losing when you change agency

Quick Answer: When you change Google Ads agency, you don’t lose data because Google deletes it. You lose it because the account lived inside the agency’s manager account, so when they unlink, your access goes with them. The fix is ownership: if your own email holds admin rights, the campaigns, history, and audiences all stay put.

Here’s the key point: “losing data” almost never means Google wiped your records. It means you no longer have a way in. If the agency built the account under their own manager account and never made you an admin, the day you change Google Ads agency you can be locked out of your own history.

Most of the real risk falls into a few buckets. Knowing them tells you what to protect before you give notice:

• Access loss. The agency owns the login path, so unlinking removes your seat even though the data still exists.
• Conversion tracking breakage. If the tags were set up under the agency’s tools, your conversion data can stop the moment they leave.
• Audience and list loss. Remarketing lists built over months are tied to the account; lose access and you lose the warm audience.
• Billing confusion. If the agency pays Google and bills you, the payment profile is theirs, not yours.

None of this is inevitable. Every item is preventable with the right setup, which is the whole point of this guide to changing Google Ads agency. If you’re still deciding whether to leave at all, our breakdown of the signs your Google Ads company is wasting your money is a useful gut-check first.

2. What Malaysian SMEs lose most in a botched agency switch

Quick Answer: When ZenWeb audits accounts that arrived after a rushed agency switch, conversion tracking is the asset lost most often, followed by remarketing audiences and negative keyword lists. The pattern is clear: the assets that take longest to build are the ones a careless handover wipes first.

We logged what each account that came to us after a bad switch had actually lost. The chart below ranks the assets by how often they went missing.

The top three are no accident: they live in account-level tools the outgoing agency controls. If you protect only three things before you change Google Ads agency, protect these. If your tracking was shaky to begin with, the switch is the moment to fix it — our guide to Google Ads conversion tracking with GA4 and WhatsApp leads shows what a clean setup looks like.

3. The 7-step plan to change Google Ads agency without losing data

Quick Answer: A safe way to switch Google Ads agency runs in order: confirm ownership, export your data, line up the new agency, grant them access, move billing, run both in parallel briefly, then remove the old agency. In this sequence, campaigns never stop and nothing gets deleted. Rush the order and that’s when data goes missing.

The sequence matters more than the speed. The single biggest mistake is firing the old agency before the new setup is confirmed. Follow these steps in order and you keep control the whole way through.

How to switch Google Ads agency safely, step by step

This is the order ZenWeb uses when we take over an account, so nothing breaks during the handover.

1. Confirm you own the account. Open Admin, then Access and security, and check your own email holds Admin access. If it doesn’t, request it before doing anything else.
2. Export everything first. Download performance reports, conversion data, audience lists, and billing history while you still have full access.
3. Choose the new agency before you give notice. Never sit with no manager. Line up the replacement so the gap is zero.
4. Grant the new agency manager access. Accept their Google Ads manager account link request, so they can work without taking ownership away from you.
5. Move billing into your name. If the old agency paid Google, switch the payment profile to yours or use Google’s transfer process so spend never pauses.
6. Run a short parallel period. Let the new agency review and stabilise the account before you cut the old one off.
7. Remove the old agency’s access. Only once the new team is in and billing is settled, revoke the old agency’s access from the Users tab.

Step three is where most owners slip. If you want a structured way to vet the replacement before you commit, our list of 10 questions to ask when choosing a Google Ads company in Malaysia doubles as a pre-switch checklist.

4. Account ownership: the setting that decides who keeps the data

Quick Answer: A manager account that links to yours can see and manage your data, but it does not own it. Per Google’s own rules, your account keeps its data and you can unlink any manager at any time. The danger is only when the agency created the account itself and never made you an admin.

This is the heart of the topic, so it’s worth being precise. Two very different setups decide how a switch goes.

The safe setup is when the account is yours and the agency is linked in as a manager. According to Google’s manager account rules, a linked manager has access but never takes data ownership or admin rights away from your account. You can remove them with one click and keep everything.

The risky setup is when the agency created the account inside their own manager account and only ever gave you limited access. Here the account technically lives under them, and leaving is harder. You’ll either need them to grant you admin or to formally transfer the account.

So before you switch Google Ads agency, find out which setup you’re in. The clearest sign of a healthy relationship is an agency that put you on admin from day one. If yours didn’t, read it alongside the other Google Ads agency red flags around ownership and lock-ins.

5. Clean switch vs rushed switch, side by side

Quick Answer: When you switch Google Ads agency cleanly, you keep admin, retain full history, and create no gap in lead flow. A rushed switch hands ownership to the agency, loses conversion history, and leaves campaigns dark while the new team rebuilds. The difference is preparation, not luck.

Seeing the two approaches side by side makes the choice obvious. The same business, the same account, gets wildly different outcomes depending only on how the handover is run.

The rushed column isn’t bad luck. It’s the default when you skip preparation, while the clean column comes straight from the seven-step order above.

6. Can you switch without pausing your leads?

Quick Answer: Yes. In a managed switch, where the new agency links in before the old one leaves, your weekly lead volume barely moves. In a cold switch, where the account is paused and rebuilt, leads typically dip sharply for two to three weeks. The model below shows the difference week by week.

Fear of “going dark” is the top reason owners delay a needed switch. But it only happens in a cold handover. The lines below track weekly leads through both routes, indexed to 100 the week before.

The managed line stays flat because the account never pauses. The cold line dips because campaigns stopped and Smart Bidding had to relearn. A short parallel period is what keeps you on the top line.

7. What to verify before you sign the new agency

Quick Answer: Before you switch Google Ads agency, confirm six things: you hold admin, conversion tracking is validated, audiences are exported, billing is in your name, the new agency is a verified Google Partner, and you keep reporting access. Skip any one and you reopen the door to data loss.

Switching is also the moment to fix whatever the last setup got wrong. Use this scorecard as your pre-signing checklist: each row is a thing to confirm, plus the risk if you don’t.

That Partner row is worth a real check, not a logo glance. Anyone can claim the badge, so learn how to verify whether a Google Partner status is genuine before you sign anything.

8. Red flags: when an agency tries to hold your account hostage

Quick Answer: An agency that refuses to give you admin access, stalls on a transfer, or claims the account “belongs to them” is holding your account hostage. None of these are normal. Google’s tools let you regain control, and the behaviour itself is your strongest reason to leave.

Most agencies do the right thing. But if yours resists a clean exit, recognise the tactics for what they are. Each is a signal, not a dead end:

• “The account belongs to us.” A linked manager never owns your data. If they created the account and won’t release it, push for a formal transfer.
• Refusing to grant you admin. There is no legitimate reason to deny a paying client admin access to their own account.
• Slow-walking the handover. Dragging out access requests for weeks is a pressure tactic, not a technical limit.
• Vague billing ownership. If they won’t clarify whose payment profile is on the account, treat it as a flag.

If two or more sound familiar, the relationship is telling you everything. It’s also worth weighing whether an agency is the right model at all, which our honest take on whether a Google Ads agency is worth it works through with simple maths.

9. The bottom line on switching safely

Quick Answer: Changing Google Ads agency is safe whenever you control the account. Confirm your ownership, export your data, line up the new team, and overlap the two briefly. Do that and your conversion history, audiences, and lead flow all survive the switch intact.

The fear of losing data keeps too many Malaysian businesses tied to an agency that no longer earns its fee. That fear is fixable. The data isn’t held by the agency; it’s held by the account, and the account can be yours.

So the real question isn’t “will I lose my data?” It’s “do I control my account?” Answer that first, follow the seven-step order, and you can change Google Ads agency without losing data of any kind. For a clear read on where your account stands today, that’s exactly what our Google Ads management service reviews first.

10. Frequently Asked Questions

1. Will I lose my conversion history if I change Google Ads agency?

Not if you keep the same account. Conversion history lives in the Google Ads account, not with the agency, so as long as the account stays the same and your tracking isn’t deleted, the history carries over. You only lose it if the agency created a fresh account or wiped the tracking setup during the handover.

2. Can my old agency block me from accessing my account?

If your own email holds admin access, no — they cannot lock you out. The problem only arises when the agency built the account inside their own manager account and never made you an admin. In that case, request admin access or a formal account transfer before you give notice, so you keep control throughout.

3. How long does it take to switch Google Ads agency?

A planned, managed switch usually takes a few days to a couple of weeks, mostly waiting on access and billing changes rather than rebuilding anything. A rushed or contested switch can stretch to several weeks. The timeline depends almost entirely on whether you already hold ownership and exported your data in advance.

4. Do my ads have to stop running during the switch?

No. If the new agency links in as a manager before the old one leaves, and billing never lapses, your campaigns keep running the whole time. Ads only stop in a cold switch where the account is paused and rebuilt. Overlapping the two agencies for a short parallel period is what keeps your leads flowing.

5. What should I do before I tell my current agency I’m leaving?

Confirm you hold admin access and export everything first: performance reports, conversion data, audience lists, and billing history. Then line up the replacement before giving notice. Prepare quietly in this order and, by the time you give notice, you already control the account, so nothing the outgoing agency does can cost you your data.