PPC & Advertising

Your PPC Campaigns Aren’t Competing Against Your Competitors. They’re Competing Against Each Other.

The biggest battle in your advertising account isn’t happening in Amazon’s auction. It’s happening inside your own business. Long before your campaigns compete against other sellers, they compete for inventory, working capital, supplier capacity and management attention.

AmazeBase 6 min read PPC & Advertising

Campaigns competing internally for the same inventory, working capital and management attention

Most sellers think their campaigns have one job: beat the competition. Outbid other brands, win more impressions, capture more clicks. It’s a logical way to think about advertising. It’s also incomplete.

Every campaign is fighting for the same limited resources — and not just advertising budget:

  • Inventory
  • Working capital
  • Management attention
  • Supplier capacity
  • Warehouse space
  • Forecasting
  • Cash flow

This is the invisible competition almost no advertising dashboard shows — and for experienced sellers it’s often more important than what happens in Amazon’s auction.

Related reading

Follows on from PPC as a capital allocation problem and stop optimizing ACOS.


Every campaign wants more money

Imagine sitting in a meeting with five campaign managers. Each manages a different product. Each asks for another $20,000 this month. Every request sounds reasonable.

  • Campaign AExcellent ROAS$20,000
  • Campaign BLaunching a new product$20,000
  • Campaign CDefending your bestseller$20,000
  • Campaign DAttacking competitors$20,000
  • Campaign ENew high-volume keywords found$20,000
Requested this month — you have enough for two $100,000

None of them are wrong. The campaigns aren’t competing against competitors. They’re competing against each other.

Advertising doesn’t live in a vacuum

One of the biggest mistakes experienced sellers make is evaluating campaigns as though they exist independently. Imagine your highest-performing campaign suddenly doubles sales. Before celebrating:

  • Can your supplier double production?
  • Can your inventory support the demand?
  • Can your cash flow finance the next purchase order?
  • Can your warehouse absorb larger shipments?
  • Can customer service handle increased volume?
  • Can your forecasting remain accurate?
The mismatch

Advertising may be succeeding. The business may not be ready.

Your best campaign can hurt your best product

Imagine your hero SKU. Strong reviews, excellent conversion, healthy margins. One campaign performs exceptionally well, so naturally you increase its budget. Sales explode. Everything looks perfect — until:

  • Inventory disappears faster than expected
  • Your next purchase order arrives late
  • You stock out
  • Organic ranking drops
  • Competitors gain visibility
  • You’re forced into expensive air freight to recover

The campaign didn’t fail. It succeeded too well.

The principle

Advertising isn’t valuable simply because it creates demand. It’s valuable when the business can profitably support that demand.

Campaigns compete for inventory

Every advertising dollar has consequences beyond clicks. Imagine Product A receives significantly more budget this month. Inventory starts moving faster — that’s great. Unless:

  • Product B now receives fewer purchase orders because working capital has shifted
  • Your supplier begins prioritising one product over another
  • Your warehouse fills with one SKU while another approaches stockout
The knock-on

Advertising doesn’t simply distribute demand. It redistributes resources throughout the business.

Campaigns compete for cash

This is one of the least discussed realities of Amazon advertising. Every successful campaign creates future financial commitments. More sales require:

  • More inventory
  • Larger purchase orders
  • Higher supplier deposits
  • Greater freight costs
  • More storage
  • Higher insurance
  • Additional working capital

Campaigns don’t just consume advertising budgets. They create obligations throughout the supply chain — and when several scale at once, those obligations compete against each other.

The opportunity cost of every budget increase

Suppose one campaign requests another $50,000. Most discussions focus on expected advertising performance. A more important question is: what can the business no longer do because of that decision?

  • Delaying another product launch
  • Reducing inventory elsewhere
  • Postponing international expansion
  • Skipping supplier discounts
  • Reducing experimentation
  • Hiring later than planned
The mechanic

The budget doesn’t disappear. It simply becomes unavailable somewhere else.

The campaign with the highest ROAS may deserve less budget

This sounds backwards. But consider two campaigns.

Campaign Alpha

ROAS 11

Almost entirely branded traffic. Excellent efficiency — and probably defending demand you already had.

Campaign Beta

ROAS 5

Mostly generic search terms. Introducing thousands of customers who had never heard of you.

The point

If your goal is defending existing demand, probably Alpha. If it’s expanding market share, perhaps Beta. Every campaign has a different strategic purpose — comparing them only by ROAS ignores that.

Every campaign has a cost beyond advertising

Imagine increasing spend by $100,000.

What dashboards calculate

  • Expected clicks
  • Expected sales
  • Expected ACOS

What they don’t

  • Additional inventory required
  • Additional capital required
  • Expected stockout risk
  • Supplier capacity
  • Lead-time pressure
  • Cash flow impact
  • Operational complexity

Management attention is a limited resource

Not all competition involves money. Some involves time. Every campaign demands analysis, optimisation, creative testing, keyword research, bid adjustments, performance reviews, meetings and reporting.

Ten mediocre campaigns often consume more attention than two exceptional ones.

The usual question

“Which campaigns perform well?”

The one that matters as you grow

“Which campaigns deserve our attention?”

Imagine your campaigns as employees

Suppose every campaign worked for your company. Each requests more budget, more staff, more time, more attention. Would you approve every request? Of course not. You’d ask which one creates the greatest long-term value.

The standard

Some campaigns generate immediate sales. Others strengthen brand awareness, protect existing customers or build future ones. Not every campaign should receive equal investment simply because it exists.

Your business doesn’t need more campaigns — it needs better allocation

Many sellers respond to declining performance by creating more campaigns. More segmentation, more targeting, more structures. Sometimes that’s appropriate. Often it simply increases complexity.

Adds complexity

“How many campaigns should we have?”

Adds clarity

“Are our current campaigns receiving the right amount of capital?”

Stop optimising campaigns in isolation

Imagine your advertising software could answer questions like these before you raised a budget by $25,000:

The questions that actually matter
  • Which SKU will require additional inventory?
  • Will supplier capacity become constrained?
  • How much additional working capital will we need?
  • Will another campaign lose budget?
  • Which business initiative will be delayed?

Those matter far more than adjusting bids by five cents, because campaigns are connected to every operational decision your business makes.

The companies that win coordinate decisions

As businesses grow, departments naturally specialise — and each begins optimising its own metrics.

MarketingMore sales
OperationsMore inventory
FinanceMore cash
ProcurementLarger POs

Individually, every department succeeds. Collectively, the business may not.

The discipline

The strongest Amazon businesses don’t optimise departments. They optimise decisions across the entire system — and advertising is one part of that system.


A better way to think about PPC

Stop imagining your campaigns fighting competitors in an auction. Instead, imagine them sitting around the same investment table, each making a proposal: “Give me another $20,000.”

The business has one responsibility. Not to reward the campaign with the highest ROAS. Not to reward the loudest request. But to invest where the next dollar creates the greatest long-term value.

Sometimes that will be your flagship product. Sometimes a launch. Sometimes it won’t be advertising at all. That’s the difference between managing campaigns and managing a business.

Great businesses aren’t built by creating more campaigns. They’re built by making better decisions about which campaigns deserve to grow — and which ones don’t.