diff --git a/src/webui/index.js b/src/webui/index.js
index f2cd228..a47daf9 100644
--- a/src/webui/index.js
+++ b/src/webui/index.js
@@ -287,7 +287,7 @@ export function mountWebUI(app, dirname, accountManager) {
      */
     app.post('/api/config', (req, res) => {
         try {
-            const { debug, logLevel, maxRetries, retryBaseMs, retryMaxMs, persistTokenCache, defaultCooldownMs, maxWaitBeforeErrorMs, maxAccounts, accountSelection } = req.body;
+            const { debug, logLevel, maxRetries, retryBaseMs, retryMaxMs, persistTokenCache, defaultCooldownMs, maxWaitBeforeErrorMs, maxAccounts, accountSelection, rateLimitDedupWindowMs, maxConsecutiveFailures, extendedCooldownMs, capacityRetryDelayMs, maxCapacityRetries } = req.body;
 
             // Only allow updating specific fields (security)
             const updates = {};
@@ -316,6 +316,21 @@ export function mountWebUI(app, dirname, accountManager) {
             if (typeof maxAccounts === 'number' && maxAccounts >= 1 && maxAccounts <= 100) {
                 updates.maxAccounts = maxAccounts;
             }
+            if (typeof rateLimitDedupWindowMs === 'number' && rateLimitDedupWindowMs >= 1000 && rateLimitDedupWindowMs <= 30000) {
+                updates.rateLimitDedupWindowMs = rateLimitDedupWindowMs;
+            }
+            if (typeof maxConsecutiveFailures === 'number' && maxConsecutiveFailures >= 1 && maxConsecutiveFailures <= 10) {
+                updates.maxConsecutiveFailures = maxConsecutiveFailures;
+            }
+            if (typeof extendedCooldownMs === 'number' && extendedCooldownMs >= 10000 && extendedCooldownMs <= 300000) {
+                updates.extendedCooldownMs = extendedCooldownMs;
+            }
+            if (typeof capacityRetryDelayMs === 'number' && capacityRetryDelayMs >= 500 && capacityRetryDelayMs <= 10000) {
+                updates.capacityRetryDelayMs = capacityRetryDelayMs;
+            }
+            if (typeof maxCapacityRetries === 'number' && maxCapacityRetries >= 1 && maxCapacityRetries <= 10) {
+                updates.maxCapacityRetries = maxCapacityRetries;
+            }
             // Account selection strategy validation
             if (accountSelection && typeof accountSelection === 'object') {
                 const validStrategies = ['sticky', 'round-robin', 'hybrid'];