01

A 90-day marketing plan at a glance

A 90-day marketing plan at a glance
PeriodPrimary jobCore outputsDecision
Days 1–10Commercial baselineGoal, audience, funnel and constraintsWhat matters this quarter?
Days 11–20Measurement repairKey events, UTM rules and dashboardCan we trust the signal?
Days 21–30Test designHypotheses, assets, budgets and ownersWhat will we test?
Days 31–60Focused executionOne acquisition and one retention testContinue, adjust or stop?
Days 61–80ConsolidationWinning message, channel and workflowWhat earns more resources?
Days 81–90Next-quarter planLearning log, forecast and backlogWhat changes next?
02

Choose one commercial priority

A 90-day plan works when marketing is tied to one business decision, not every possible objective.

A workable quarterly priority is specific: qualified enquiries for one service, repeat purchases from recent customers or demand in a defined region. It has a baseline, a desired direction and a clear constraint. Awareness, leads, e-commerce revenue, recruitment and a rebrand do not belong in one quarterly promise.

Portugal’s economy is dominated by SMEs under the European definition, but their resources and operating models vary widely. The European Commission defines an SME using employee count and financial thresholds; a microbusiness and a 200-person manufacturer should not share the same channel plan simply because both are SMEs.[1]

  • Commercial outcome
  • Priority audience
  • Geography and language
  • Budget and team capacity
  • Decision owner
03

Days 1–30: establish the baseline

The first month should make current performance and measurement limitations visible.

Map how demand currently arrives: organic search, referrals, paid media, marketplaces, partners, direct sales and repeat customers. Record volumes, quality and cost where reliable. The 2025 European advertising benchmark shows continued growth across digital formats, but market growth is not a reason for every SME to add every channel.[2]

Identify the few actions that represent genuine progress. Google Analytics defines a key event as an action important to the success of the business. For a service firm it may be a qualified form completion; for e-commerce it may be a purchase or a meaningful step toward one.[3]

Explore the measurement planning tools
04

Create a measurement contract

A measurement contract states what each metric means, where it comes from and who uses it.

Document event names, lead stages, revenue definitions, exclusions and reporting frequency. Standardise campaign parameters before launch. Google’s Analytics documentation recommends consistent UTM parameters so campaign traffic can be identified without fragmenting source data.[4]

Separate leading indicators from business outcomes. Click-through rate can diagnose a message; it is not revenue. Cost per lead can support a decision only when lead quality is defined and sales outcomes are fed back into the review.

  • Metric and plain-language definition
  • Data source and owner
  • Update frequency
  • Known limitations
  • Decision the metric supports
05

Days 31–60: run two focused tests

Use the middle month for one acquisition test and one retention or conversion test.

Write each test as a decision: for this audience, will this message and offer produce more qualified action than the current version within a defined budget and period? Change as few important variables as practical.

Platform experiments can split traffic between a control and treatment to compare performance over time. Google Ads supports campaign experiments for several campaign types, but small samples can still produce noisy results. Record sample size, duration and external events before declaring a winner.[5]

Review the paid media guide
06

Days 61–90: consolidate what earned its place

The final month turns test results into operating decisions.

Continue an activity when it produces a useful commercial signal and the team can deliver it consistently. Adjust when the mechanism appears sound but the message, audience or journey is weak. Stop when the economics, evidence or operational burden do not justify another cycle.

Document the conclusion and the confidence level. A failed test can be valuable if it closes an option and improves the next hypothesis. A positive platform result may still need confirmation against sales quality, margin or repeat behaviour.

07

Use a scorecard small enough to discuss weekly

A useful scorecard helps the team decide; it does not reproduce every available dashboard.

Choose five to eight measures across demand, conversion, economics and delivery. Include a short commentary explaining what changed and what action follows. A weekly meeting should end with owners and decisions, not a tour of charts.

At day 90, compare the result with the original baseline, list what remains uncertain and commit resources for the next cycle. Move only validated work into the operating plan. Keep unproven ideas in a prioritised backlog rather than presenting them as strategy.

Read the SEO planning article
08

FAQ

Frequently asked questions

How much should an SME spend on marketing over 90 days?

There is no reliable universal percentage. Start from the commercial goal, gross margin, sales capacity, existing demand and the minimum budget needed to run a useful test without risking cash flow.

Which marketing channel should a Portuguese SME start with?

Start with the channel closest to demonstrated customer demand and the team’s ability to respond. Search may suit active demand; partnerships or outbound may be better for narrow B2B markets.

How many campaigns should run at once?

Run only as many as the team can measure, serve and learn from. For a small team, one acquisition test and one retention or conversion test is often enough for a focused quarter.

What belongs on a weekly marketing scorecard?

Include a small set of measures covering qualified demand, conversion, cost or value, delivery status and a written decision. Avoid metrics that nobody can act on.

What if 90 days is too short to prove revenue impact?

Use leading indicators that have a documented relationship to later revenue, state the limitation and continue measuring after the quarter. Do not convert an early signal into a revenue claim.

Should brand work be excluded from a 90-day plan?

No, but define what the quarter can realistically deliver: research, positioning decisions, identity work or message testing. Long-term brand effects should not be promised from short-term activity.

09

Sources and further reading

Editorial method: written around the stated decision, checked against the primary and industry sources below, and reviewed in Portugal. No provider paid for inclusion.

  1. European Commission — SME definition

    Official employee and financial criteria for EU SMEs.

  2. IAB Europe — AdEx Benchmark 2025

    Current harmonised European digital advertising investment benchmark covering Portugal.

  3. Google Analytics — Key events

    Official definition and reporting guidance for business-critical actions.

  4. Google Analytics — Campaign URL parameters

    Official UTM parameter and campaign attribution guidance.

  5. Google Ads — Experiments

    Official explanation of control and treatment campaign experiments.