When Amazon growth slows, increasing advertising spend is tempting.
More budget creates more impressions. More impressions can create more sales. But additional spend does not automatically create better growth.
Sometimes it hides a problem.
Advertising cannot fix unavailable inventory
If a hero SKU is repeatedly out of stock, scaling advertising may accelerate the inventory problem and damage organic momentum when availability disappears.
Media planning and inventory planning need to talk to each other.
Advertising cannot permanently rescue weak conversion
A listing with poor creative, confusing variations, weak reviews or an uncompetitive price will often require excessive paid traffic to maintain sales.
The advertising team may optimize bids perfectly and still produce mediocre economics.
Fixing conversion can create more value than adding budget.
ROAS can be misleading
A high ROAS looks impressive, but it does not tell you how much of that demand was incremental.
Branded search campaigns can produce exceptional ROAS because customers were already looking for the brand.
That is useful traffic, but executives should understand the difference between harvesting existing demand and creating new demand.
ACOS is not a strategy
The lowest possible ACOS is not always the objective.
A new product launch may rationally tolerate higher advertising costs while it builds reviews, sales history and organic rank.
A mature hero product may require a very different efficiency target.
Navigas evaluates advertising in the context of TACOS, margin, organic contribution, inventory, category opportunity and business goals.
The right question
Instead of asking "Can we spend more?" ask "Where will the next advertising dollar create incremental value?"
The answer may be Sponsored Products. It may be DSP. It may be Walmart Connect. It may be creative. It may be inventory.
Sometimes the highest-return advertising decision is fixing something outside the advertising account.