TL;DR: Signing up takes about 60 seconds with no credit card required, and your trial runs 14 days. The two things that actually determine how fast you’re repricing are connecting your Seller Central account and setting your first pricing rule correctly, not the signup itself. This guide walks through both, plus what to expect afterward and the mistakes that most often cost new sellers margin in their first week.
Most of the time between signing up and your first live price change isn’t spent on the signup form. It’s spent deciding what your floor price actually is and who you’re willing to compete against. Get those two decisions right before you go live, and everything after that is the software doing its job.
Step 1: Connecting your Seller Central account
RepricerExpress connects to your Seller Central account through Amazon’s official Selling Partner API authorization, the same secure, OAuth-based connection method Amazon requires of any third-party seller tool. You’re not handing over your Seller Central login and password directly to a third party; you’re granting a scoped, revocable authorization through Amazon’s own approval flow, which you can review or remove from your Seller Central account at any time.
Once that’s connected, RepricerExpress can see your live listings, current prices, and competitor offers, but it won’t change a single price until you tell it to, in Step 2.
If you sell on eBay as well, connecting that account follows a similar authorization process, and both channels report into the same dashboard once connected.
Step 2: Setting your first pricing rule
This is the step that actually determines whether repricing helps or hurts you, so it’s worth taking seriously even though it only takes a few minutes.
Every rule starts with two numbers: your minimum and maximum price. Your minimum needs to cover your product cost, Amazon’s referral fee, FBA fees if applicable, and your target margin, not just what you paid for the item. A floor price that only covers cost looks safe and quietly loses money once fees come out.
From there, you’ll want to decide who you’re actually competing against. RepricerExpress lets you filter competitors by fulfillment method, feedback score, and stock status, so your rule only reacts to sellers who genuinely threaten your Buy Box. An FBM seller with a two-week delivery window usually isn’t your real competition; an FBA seller at 95%+ feedback usually is.
Before any rule goes live on real listings, run it through Safe Mode first. Safe Mode tests your rule against live market data without actually changing your prices, so you can see what it would have done before you let it start doing it.
Step 3: What happens next
Once your first rule is live, RepricerExpress starts monitoring your listings continuously and adjusting price within your set update speed, whether that’s hourly, every 10 minutes, or instant, depending on your plan. You don’t need to check prices manually from here; the dashboard shows you what changed and why.
Give it a few days before judging results. Buy Box rotation and competitor behavior take a little time to show a pattern, and your first rule is rarely your last. Most sellers refine their rules after seeing a week or two of real data, tightening competitor filters or adjusting the floor once they see how the market actually responds.
Common setup mistakes to avoid
Setting the floor on product cost alone. Fees and target margin have to be in that number, or “protected” pricing still loses money.
Skipping Safe Mode. It takes a few minutes and tells you whether a rule behaves the way you expect before it touches a live listing.
Leaving competitor filters wide open. Repricing against every seller on the listing, including ones who were never going to win the Buy Box anyway, gives away margin for no reason.
Setting a rule once and never revisiting it. Costs, fees, and competitor behavior all change. A rule that was right at launch can quietly become wrong a few months later.
Forgetting to set rules on every channel you connect. If you’re on both Amazon and eBay, each channel needs its own rule, not one rule you assume covers both.
FAQ
How long does it take to start repricing after signup? Signup itself takes about 60 seconds. Getting your first rule live typically takes a few more minutes once you’ve worked out your floor price and competitor filters, and RepricerExpress includes free managed setup with dedicated repricing experts if you want help getting it right the first time.
Do I need a credit card to sign up? No. The 14-day trial doesn’t require a credit card.
Is my Seller Central login shared with RepricerExpress? No. Connection happens through Amazon’s official authorization flow, which grants scoped access without sharing your login credentials, and you can review or revoke that access from your Seller Central account at any time.
What is Safe Mode? A way to test a pricing rule against live market data without it actually changing your prices, so you can confirm it behaves as expected before it goes live.
Can I change my pricing rule after it’s live? Yes, at any time. Most sellers adjust their first rule after seeing a week or two of real results.
What if I sell on more than one marketplace? Each connected channel, whether that’s a different Amazon region or eBay, needs its own rule. Connecting the account is a one-time step, but rules are set per channel.
If you get stuck at any point, RepricerExpress includes a free managed setup with dedicated repricing experts, so you’re never working through this alone.
