diff --git a/frontend/app/exchange/page.tsx b/frontend/app/exchange/page.tsx
index db94b3a..f93e938 100644
--- a/frontend/app/exchange/page.tsx
+++ b/frontend/app/exchange/page.tsx
@@ -12,15 +12,15 @@ import { components } from "../generated/api";
 import { formatDate, formatTime, getDateRange } from "../utils/date";
 import { formatEur } from "../utils/exchange";
 import { layoutStyles, typographyStyles, bannerStyles, buttonStyles } from "../styles/shared";
+import constants from "../../../shared/constants.json";
 
 type ExchangePriceResponse = components["schemas"]["ExchangePriceResponse"];
 type ExchangeResponse = components["schemas"]["ExchangeResponse"];
 type BookableSlot = components["schemas"]["BookableSlot"];
 type AvailableSlotsResponse = components["schemas"]["AvailableSlotsResponse"];
 
-// Constants from shared config (will be fetched from API)
-const MIN_ADVANCE_DAYS = 1;
-const MAX_ADVANCE_DAYS = 30;
+// Constants from shared config
+const { minAdvanceDays: MIN_ADVANCE_DAYS, maxAdvanceDays: MAX_ADVANCE_DAYS } = constants.exchange;
 
 type Direction = "buy" | "sell";
 type WizardStep = "details" | "booking";