What to prepare, which metrics matter, and how agencies estimate costs so you get a usable, comparable quote.

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Campaigns average a 300% return on ad spend across R50M+ in managed budget.
Premier Partner status places us in the top 3% of agencies in the country.
Conversion tracking and GA4 configured properly from day one, not months later.
New campaigns built, reviewed and live in days rather than weeks.
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Find answers to common questions
Budget requirements vary by industry, funnel and competitive intensity, but many advertisers need several thousand dollars per month to collect statistically useful conversion data; smaller budgets can still work if campaigns are tightly targeted to high-intent keywords or remarketing audiences. Prebo Digital designs spend strategies to prioritise profitable channels and scale when unit economics support it.
For eCommerce campaigns the focus is typically on Shopping, dynamic remarketing and ROAS-driven bidding tied to LTV, while B2B emphasises lead quality, account-based targeting, longer attribution windows and CPL/CPA optimisation. In both cases measurement, funnel optimisation and cross-channel attribution are prioritised to ensure spend drives revenue, not just clicks.
Prebo Digital implements clean data pipelines using GA4, Google Tag Manager, and server-side tracking, and ties platform data to on-site conversions and offline events where applicable to reduce attribution bias. Multi-touch attribution models and consolidated reporting are used to align spend with revenue and lifetime value rather than platform-reported last-click metrics.
Prebo Digital offers end-to-end Google Ads services including account audits, campaign strategy and setup (Search, Shopping, Display, Video, Remarketing), bid and budget management, conversion tracking implementation, and ongoing performance optimisations focused on revenue outcomes.
Time to profitability depends on product margins, funnel conversion rates, tracking accuracy and budget; an initial data-collection and learning phase commonly takes 4-8 weeks, with structured optimisation and scaling typically assessed over several months. Prebo Digital focuses on iterative testing and measurement to improve profitability rather than short-term traffic metrics.
In This Article
Prepare a concise brief
Compare on revenue impact
Require measurement scope
Requesting a quote from a PPC and CRO agency is more than asking for a price - it’s the start of a discovery process that sets expectations for measurement, outcomes, and timelines. Well-prepared requests reduce back-and-forth, improve bid accuracy, and let agencies provide scoped proposals that focus on revenue and profitability rather than vanity metrics.
Including this information upfront helps agencies produce proposals that map strategy to expected revenue impact. If you want an example template for the information to share, see Prebo Digital’s services details for how we scope engagements: Services Overview.
Agencies typically split evaluation into four areas: strategy, implementation, testing cadence, and reporting. For PPC they estimate campaign builds, creative needs, and bid strategy. For CRO they audit funnels, write hypotheses, and estimate experiment complexity. A combined proposal shows where efforts overlap (e.g., landing page builds used for both paid ads and experiments) and where work must be discrete.
Quick tip: When requesting a quote, ask for both a minimum viable scope (3 months) and a growth scale plan (6-12 months). That clarifies near-term cost and the roadmap to measurable revenue impact.
If you’re unsure what level of access to grant, agencies often outline a minimum-access option in their quote. Learn how Prebo Digital approaches access and onboarding in our About section: About Prebo Digital.
Pricing can be fixed-fee, percentage-of-ad-spend, or a hybrid retainer plus performance incentive. Each model has trade-offs. Fixed fees clarify monthly cost but may limit scale; percentage models align agency incentives with spend but can obscure true cost-per-acquisition if attribution is incomplete. Hybrid retainers encourage long-term optimization and experimentation cycles that focus on profitability.
A transparent quote separates build costs (one-time) from ongoing management and experimentation. That makes it easier to compare proposals from multiple agencies on an apples-to-apples basis.
| Layer | Client-side | Server-side (recommended) |
|---|---|---|
| Data source | Browser tags (Gtag, Pixel) | Server container, backend calls |
| Reliability | Affected by ad-blockers and cookie consent | Higher fidelity for match rates and revenue |
| Common use | Real-time UI events | Attribution, deduplication, secure revenue sends |
| Stage | Primary focus | Sample metrics |
|---|---|---|
| TOF (Top) | Audience build and awareness | Impressions, reach, CPC (as proxy) |
| MOF (Middle) | Consideration and micro-conversions | Add-to-cart, email sign-ups, lead form completions |
| BOF (Bottom) | Purchase and retention | Orders, AOV, repeat-purchase rate, MER |
For a mid-market Shopify store in the US spending $30,000/mo on paid media, an initial three-month combined PPC + CRO retainer might range from $6,000-$12,000/month (estimates), depending on scope. Agencies should be explicit about one-time builds versus ongoing test velocity. Put estimates in US$ and label them as ranges to reflect variables like creative assets and development work.
Include a concise summary (what you sell, current monthly revenue and ad spend, primary KPI), attach access or a list of access you can grant, and request two quote options: minimum viable engagement and a 6-12 month growth plan. If you prefer a live discussion first, you can visit our homepage to book a time or use the contact page to send scoped details: Contact Prebo Digital.
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