Custom Logic - Detailed Overview – Repricer AI

Getting Started with Custom Rules

Overview

Custom Rules let you define your own repricing logic that runs automatically. Each rule is made up of one or more Statements — and when a statement's conditions are met, RepricerAI calculates a new price using your chosen competitors and method.

Rules execute in priority order. The first rule whose conditions match wins.

Step 1 — Navigate to Custom Rules

Go to Custom Logic (or Custom Rules) in the main menu. Here you'll see a list of your existing rules and a button to create a new one.

Step 2 — Create a Rule

When you create a rule, set:

Setting	What it does
Name	A label for the rule (e.g. "Old Stock Discount")
Buy Box Status	When to apply this rule: Always, When I have the buy box, When someone else does, or When there's no buy box
Product Categories	Which of your product categories this rule applies to
If no statement matches	Fallback: use RepricerAI's AI pricing, or do not reprice

Step 3 — Add Statements

Each rule can have multiple statements. Within a statement you configure:

Conditions (RunWhen)

All conditions must be true for the statement to fire. Common options:

New seller on page → use FBA Seller on Page or Merchant Seller on Page
Old / slow-moving offer → use Unsold Days Greater Than (e.g. > 30 days)
Amazon competing → use Amazon Is on Page or Amazon Has Buy Box
You have the buy box → use I Have the Buy Box
No specific condition → choose No Criteria Set (statement always runs if rule triggers)

Competitor Filters

Narrow down which competitor offers are considered:

Fulfillment type: All, FBA only, or Merchant only
Offer condition: New, Used - Like New, Used - Very Good, etc.
Seller rating: e.g. only sellers with rating ≥ 90
Special filters: Buy box winner only, previously held buy box, expedited shipping, etc.

Price Calculation

Sort competitors by price (ascending or descending)
Top N — how many competitors to look at (1–20)
Method — use the Minimum, Maximum, or Average of those competitors
Adjustment — add or subtract a dollar amount (e.g. −$0.01 to undercut)

Limits

Protect yourself from large price drops:

Max price decrease in a single reprice (dollar amount)
Daily / Weekly / Monthly / All-time maximum decrease (percentage)
Lowest allowed price floor

Failsafes

What to do when the normal calculation can't complete:

Situation	Options
No competitors match your filters	Do not reprice · Keep same price · Use min/max/mid price · Fall back to RepricerAI · Try next rule
Calculated price is below your minimum	Override the minimum · Use min price · Fall back to RepricerAI · Try next rule
Calculated price exceeds your maximum	Cap at max price · Override max · Do not reprice

Example: "Old Offers — Aggressive Discount"

Goal: If a product hasn't sold in 30+ days and there's a new seller on the page, undercut the cheapest FBA competitor by $0.50.

Setting	Value
Buy Box Status	Always
Conditions	Unsold Days > 30 AND FBA Seller on Page = Yes
Competitor Type	FBA
Offer Condition	New
Sort	Ascending (cheapest first)
Top N	1
Method	Minimum
Adjustment	−$0.50
Failsafe (no competitors)	Do not reprice

Example: "Protect Buy Box — No Amazon"

Goal: When you have the buy box and Amazon is not on the page, price at the average of the top 3 FBA sellers.

Setting	Value
Conditions	I Have the Buy Box = Yes AND Amazon Is on Page = No
Competitor Type	FBA
Top N	3
Method	Average
Adjustment	$0.00
Failsafe (no competitors)	Keep same price

Tips

Use the Preview button to download an Excel file showing exactly how the rule would price your current active SKUs — before enabling it.
Priority matters: put the most specific rules at the top (higher priority) and general fallback rules at the bottom.
Multiple statements in one rule are checked in order; the first matching statement applies.
Fixed-price products are never affected by custom rules.