Walmart Connect Bidding — Manual vs Auto + ROAS Targets
Bid strategy on Walmart Connect is simpler than Amazon's but still has 3 modes that work differently. Picking the wrong mode for your campaign maturity costs 10-30% of potential ROAS.
The 3 bidding modes
Manual: you set per-keyword bids. Best for established campaigns with > 30 days of data.
Automatic: Walmart sets bids based on conversion likelihood. Best for new campaigns (< 30 days) to discover converting keywords.
Dynamic-bidding-with-floor: you set a floor; Walmart bids up to 2x the floor when conversion likelihood is high. Hybrid best-of-both for mid-stage campaigns.
Realistic ROAS targets per category
Grocery + consumables: 6-10x ROAS achievable due to repeat-purchase behavior.
Home + garden + kitchen: 4-7x typical.
Apparel: 3-5x due to high return rates impacting attributed sales.
Electronics: 3-6x; lower because Walmart's electronics SERP is Amazon-dominated.
The 4-week optimization cadence
Week 1-2 of a new campaign: run automatic to discover converting keywords.
Week 3: promote top-performing keywords to a manual campaign with higher bids.
Week 4: add negative keywords from the Search Term Report.
Steady-state: weekly bid adjustments, monthly negative-keyword refresh.
Frequently asked questions
Should I use placement modifiers (Search In-grid, Buy Box, etc.)?
Yes — once you have 30 days of data. Different placements have wildly different conversion rates. Most sellers find Search In-grid converts best for branded keywords, Buy Box for generic terms.
How low can I bid?
Walmart's floor is $0.10 per click for most categories. Bidding too low (< $0.30) means impressions but no clicks — your ads lose every auction.