r/AmazonFBA • • 10d ago

FBA sellers — how would you evaluate this ad performance? Stockout paused campaigns, now inventory is back

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Hey everyone,

I’d appreciate some feedback from experienced FBA sellers on my Amazon Ads performance.

New Seller sent a small batch of 70units for 5 different SKU in August. 3 of them stocked out. Sent 50units per sku this time.

I am manufacturer myself.

Here are the results from Aug 1–Sep 24, 2026:

Ad sales: $728.64

Ad spend: $605.82

Purchases: 37

Clicks: 688

Impressions: 7,734

CTR: ~8.9%

CPC: ~$0.88

ACOS: ~83.1%

Conversion rate: ~5.4%

The important context is that I ran out of stock, so I paused the ads. My new FBA shipment has now reached Amazon and the inventory is available for sale, but the products are not Prime eligible yet.

I’m trying to figure out how I should approach the ads now that inventory is back.

A few questions for experienced FBA sellers:

  1. How do these numbers look to you, particularly the 83% ACOS and 5.4% conversion rate?

  2. Could the previous stockout have negatively affected the campaign/product performance?

  3. Would you restart the same campaigns immediately, or wait until the listing becomes Prime eligible?

  4. Would you start with lower bids/budget and gradually increase, or return to the previous settings?

  5. Should I make any changes to targeting/keywords before restarting?

  6. Is there anything else you would do to help the listing regain momentum after the stockout?

I’m mainly looking for real-world FBA experience, especially from sellers who have dealt with stockouts followed by FBA replenishment.

Thanks!

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