The phrase "full service Amazon agency" is used so broadly that it often means almost nothing.
For some firms, full service means advertising plus occasional listing updates.
For Navigas, marketplace management is much broader.
Strategy
A full-service partner should understand the commercial objectives behind the account.
That includes growth targets, margin, assortment, pricing, promotions, inventory constraints, channel conflict and the role Amazon plays in the broader business.
Without that context, tactical recommendations can optimize the wrong outcome.
Seller Central and Vendor Central
Experienced Amazon management should understand both 3P and 1P environments.
Seller Central requires expertise in account health, FBA, FBM, inventory, pricing, Brand Registry and operational case management.
Vendor Central involves a different set of wholesale economics and processes.
Catalog and content
Catalog health is foundational.
A full-service agency should manage listing creation, variation structures, attributes, keyword optimization, A+ Content, Stores, creative recommendations and conversion improvement.
Catalog problems cannot simply be handed back to the client every time they become inconvenient.
Operations
Inventory forecasting, replenishment, stockout prevention, fulfillment planning, Buy Box issues, reseller management and account health all affect sales.
These are not side tasks.
They are part of running the marketplace business.
Advertising
Sponsored Products, Sponsored Brands, Sponsored Display, DSP and AMC should connect to the broader commercial plan.
The media strategy should reflect inventory, product life cycle, organic rank and contribution economics.
Reporting and communication
A full-service partner should tell clients what is happening, why it matters and what happens next.
There should be no surprises.
Responsiveness and urgency matter because marketplace issues rarely wait for the next monthly meeting.
The simplest test
Ask the agency what happens when the problem is not advertising.
If the answer is "that belongs to the client," the relationship may not be truly full service.
Navigas was built around strategy plus execution because marketplace growth depends on both.