Switching CSS provider step by step, with no downtime

Google Shopping strategies for more revenue, in your inbox

Every other week: what is changing in Google Shopping, what we see in our customers' accounts, and what to do about it.

When you switch CSS, your Shopping campaigns and sales keep running without interruption.

The CSS submits your products to the Shopping auction. It can be replaced while your campaign structure, bidding strategy and feed stay unchanged.

You save 20% on your click price if you hold your position, or get 25% more bidding power on the same budget. The fixed price is £17 per month, with no setup fee and no minimum term.

When you switch CSS, you simply link your Merchant Center to the new CSS

The switch only changes which CSS your product data is assigned to at account level.

What changes:

CSS assignment of your Merchant Center: from the switch onwards, your account submits to the auction through the new CSS.
Click price: the CSS advantage lowers your CPC immediately in all your target markets.
Contact: account support, invoicing and help are handled by the new CSS from then on.

What stays the same:

Your shop: shop system, scripts and tracking remain unchanged.
Your Merchant Center: account ID, feeds and product IDs stay the same.
Your campaigns: structure, budgets, bidding strategies and assets remain in place.
Your history: conversion data and campaign history stay in the account.

Only the party submitting your products changes. Technically, switching CSS is a small change with a big effect on your click costs.

Your campaigns, bidding strategies and learning phases keep running without interruption

Your campaigns keep running without interruption. Smart Bidding keeps its learning phase, and all Performance Max and Shopping campaigns stay active.

Bidding strategies use the conversion data in your Google Ads account. That data is kept. The CSS only changes the identifier used in the auction.

Once the switch is complete, you pay 20% less per click for the same position. Your budget therefore covers more clicks.

Your products stay visible throughout, as long as you leave your feed unchanged in the meantime.

How to migrate successfully in 5 steps

The process is the same, whichever CSS provider you currently use and even if you are on Google Shopping.

Step 1: Take stock

Note your Merchant Center ID, active feeds, target markets and campaign types. If you already use a CSS provider, also check your notice period.

Step 2: Request the switch

Sign up with the new CSS and provide your Merchant Center ID. We send the link request and you confirm it in your Merchant Center. Feeds are not duplicated and campaigns are not paused.

Step 3: Check feed and shipping details

Before the switch, check your shipping costs, delivery times, prices and availability for each target market. These details protect your visibility.

Step 4: Implementation in 48 hours, then checks

The switch happens while everything keeps running. Check product approvals, impressions and your falling CPC. Leave bids and budgets unchanged for now.

Step 5: Evaluation after two to four weeks

Assess CPC, clicks and revenue after two to four weeks. Compare full weeks, including weekends, with the previous period.

Implementation takes 48 hours, and your campaigns keep running throughout

Step	When	Who	What to watch
Take stock	Before you start	You	Merchant Center ID, feeds, target markets
Request the switch	Day of booking	You	Provide the correct account ID
Confirm the link and implement	48 hours	You / CSS Partner	Confirm the request in Merchant Center, change nothing else in the account
Feed and shipping check	Before the switch	You / CSS Partner	Shipping, delivery time, availability per market
Checks	After implementation	You	Approvals, impressions, CPC
Evaluation	After 2 to 4 weeks	You / CSS Partner	Compare full weeks

We get in touch within 24 hours of your booking. The implementation itself takes 48 hours, followed by checks and evaluation.

Check these six points before you switch

Feed status: there are no major open disapprovals in Merchant Center beforehand.
Shipping and delivery time: enter the details separately for each target market.
Prices and availability: feed and shop match, including during promotions.
Campaign structure: note the current setup as a reference for later comparisons.
Tracking: conversion measurement runs reliably and unchanged.
Contract: clarify the notice period and billing period with your current CSS provider.

Don't change anything else in the week of the switch. Simultaneous changes make a clean evaluation impossible.

These six mistakes distort the evaluation of your switch

Reworking the feed during the switch: switch first, then optimise, so the effects stay clear.
Adjusting bids and budgets: changes to bidding strategies distort the measured results of the switch.
Running two setups in parallel: assign each product to exactly one CSS to avoid confusion.
Evaluating after three days: short periods only show weekday effects.
Forgetting target markets: check all target countries, because the advantage applies in every market.
Leaving shipping details unchecked: incorrect shipping data often weakens Shopping results, regardless of the CSS.

Once the switch is complete, you pay 20% less per click

You save 20% on your click price if you hold your position, or use the same budget with 25% more bidding power. Our offer costs £17 per month including all target markets, with no setup fee and no minimum term.

The switch is a link set up in the background. As soon as implementation is complete, you pay the lower CPC.

Frequently asked questions about switching CSS

Will my campaigns stop during the switch?

No. The switch happens while everything keeps running. Campaigns and ads in Google Shopping continue without interruption.

Do I need to create a new Merchant Center?

No. You keep your Merchant Center account with all its feeds, IDs and settings. Only the CSS assignment changes.

What does the switch cost?

The switch is free. You only pay the monthly fee of £17, with no setup fee and no minimum term.

Does the advantage apply to several target markets?

Yes. One CSS covers all your target markets. Additional countries cost nothing extra and need no second setup.

Can I switch back later?

Yes. You can change the CSS assignment at any time. With no minimum term, you stay completely flexible.

How long does the whole switch take?

Implementation takes 48 hours. You will see reliable comparison results after two to four weeks.