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Strategy 9 min read Updated September 23, 2026

How do I hand over marketing to a new agency without losing leads?

Short answer

Keep your phone number, booking system, and lead forms live throughout the switch, and never pause Google Ads and SEO changes at the same time. Export historical data and reports before closing access with the old agency, and overlap the handover by a few weeks if possible so nothing goes untouched during the transition.

Key facts

  • Google Ads campaigns paused during a transition stop generating impressions and clicks immediately, so any gap in active campaigns directly reduces lead flow for as long as the pause lasts.
  • Historical conversion and audience data generally stays tied to the platform account itself, so exporting or documenting performance history before closing access with an outgoing agency preserves information that can otherwise become harder to retrieve later.
  • A phone number, booking system, or lead form can be kept identical and continuously live across an agency switch, since these are typically owned by the business itself rather than the outgoing agency.
  • SEO changes and Google Ads changes operate on different timelines, technical SEO and content take months to show effects, while ad changes can affect lead flow within days, so pausing both at once compounds risk rather than simplifying the switch.
  • A short overlap period, where the outgoing and incoming agency both have visibility into the account for a defined window, reduces the chance that something goes unmonitored during the exact handover period.

Protect the Actual Lead Flow First

Start by identifying everything currently producing leads, running ads, ranking pages, a booking system, a phone number, and make a specific plan to keep each one live and monitored throughout the switch.

Never pause Google Ads and SEO changes simultaneously. Stagger any risky change so that if something dips, you can actually tell which channel caused it.

Confirm your phone number, booking system, and forms are assets your business owns directly, not something tied to the outgoing agency's own systems.

Get the Data and History Out Before Closing Access

Export historical reports, conversion data, and account summaries before revoking the outgoing agency's access to anything.

Confirm you retain your own platform-level access, per the access principles covered elsewhere, so your history isn't tied to a relationship that's ending.

Document exactly what's currently running so nothing gets accidentally paused, changed, or deleted in the confusion of the switch itself.

Sequence the Actual Switch Deliberately

Where the relationship allows it, bring the new agency in for an overlap window before fully exiting the old one.

If a clean cutover is the only realistic option, have the new agency's audit and access fully ready before the old agency's access ends, keeping any gap as small as possible.

Avoid switching everything, ads, SEO, tracking, website, in the same week. Stagger the pieces wherever you reasonably can.

What to Actually Monitor During the Transition Itself

Watch lead volume and campaign status daily for the first week or two of any switch, rather than waiting for the next scheduled monthly report to notice a problem.

Confirm tracking, forms, calls, still fires correctly after any account or website change made as part of the switch.

Treat the first month after a switch as a heightened-attention period, not simply business as usual with a new name on the invoice.

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