diff --git a/src/paymentProcessor.ts b/src/paymentProcessor.ts
index eeb6160..53085ba 100644
--- a/src/paymentProcessor.ts
+++ b/src/paymentProcessor.ts
@@ -26,9 +26,12 @@ class PaymentProcessor {
   private regHelper: RegHelper;
   private processedHashes: Set<string> = new Set();
   private checkInterval: number = 30000; // 30 seconds
+  private lastProcessedTime: Date = new Date();
 
   constructor() {
     this.regHelper = new RegHelper();
+    // Only process requests from the last 10 minutes on startup
+    this.lastProcessedTime = new Date(Date.now() - 10 * 60 * 1000);
   }
 
   /**
@@ -55,20 +58,30 @@ class PaymentProcessor {
   }
 
   /**
-   * Process new ApplicationDeploymentRequest records
+   * Process new ApplicationDeploymentRequest records (only recent ones)
    */
   private async processNewRequests(): Promise<void> {
     try {
       // Query for all ApplicationDeploymentRequest records
-      const requests = await this.regHelper.queryRecords({
+      const allRequests = await this.regHelper.queryRecords({
         type: 'ApplicationDeploymentRequest',
       });
 
-      console.log(`Found ${requests.length} deployment requests`);
+      // Filter to only process recent requests (created after lastProcessedTime)
+      const recentRequests = allRequests.filter(request => {
+        const createTime = new Date(request.createTime);
+        return createTime > this.lastProcessedTime;
+      });
 
-      for (const request of requests) {
+      console.log(`Found ${allRequests.length} total deployment requests, processing ${recentRequests.length} recent ones`);
+
+      for (const request of recentRequests) {
         await this.processRequest(request);
       }
+
+      // Update lastProcessedTime to now
+      this.lastProcessedTime = new Date();
+      
     } catch (error) {
       console.error('Error querying deployment requests:', error);
     }
@@ -91,6 +104,18 @@ class PaymentProcessor {
       return;
     }
 
+    // Skip if request already has a deployment (already successfully processed)
+    const existingDeployments = await this.regHelper.queryRecords({
+      type: 'ApplicationDeploymentRecord',
+      request: requestId
+    });
+    
+    if (existingDeployments.length > 0) {
+      console.log(`Skipping request ${requestId} - already has deployment`);
+      this.processedHashes.add(paymentHash);
+      return;
+    }
+
     console.log(`Processing request ${requestId} with payment hash ${paymentHash}`);
 
     try {