diff --git a/supabase/functions/_shared/errorFormatter.ts b/supabase/functions/_shared/errorFormatter.ts
new file mode 100644
index 00000000..2fa90b43
--- /dev/null
+++ b/supabase/functions/_shared/errorFormatter.ts
@@ -0,0 +1,94 @@
+/**
+ * Error Formatting Utility for Edge Functions
+ * 
+ * Provides robust error message extraction from various error types:
+ * - Standard Error objects
+ * - Supabase PostgresError objects (plain objects with message/details/code/hint)
+ * - Raw objects and primitives
+ * 
+ * Eliminates "[object Object]" errors by properly extracting error details.
+ */
+
+/**
+ * Format error objects for logging
+ * Handles Error objects, Supabase errors (plain objects), and primitives
+ * 
+ * @param error - Any error value
+ * @returns Formatted, human-readable error message string
+ */
+export function formatEdgeError(error: unknown): string {
+  // Standard Error objects
+  if (error instanceof Error) {
+    return error.message;
+  }
+  
+  // Object-like errors (Supabase PostgresError, etc.)
+  if (typeof error === 'object' && error !== null) {
+    const err = error as any;
+    
+    // Try common error message properties
+    if (err.message && typeof err.message === 'string') {
+      // Include additional Supabase error details if present
+      const parts: string[] = [err.message];
+      
+      if (err.details && typeof err.details === 'string') {
+        parts.push(`Details: ${err.details}`);
+      }
+      
+      if (err.hint && typeof err.hint === 'string') {
+        parts.push(`Hint: ${err.hint}`);
+      }
+      
+      if (err.code && typeof err.code === 'string') {
+        parts.push(`Code: ${err.code}`);
+      }
+      
+      return parts.join(' | ');
+    }
+    
+    // Some errors nest the actual error in an 'error' property
+    if (err.error) {
+      return formatEdgeError(err.error);
+    }
+    
+    // Some APIs use 'msg' instead of 'message'
+    if (err.msg && typeof err.msg === 'string') {
+      return err.msg;
+    }
+    
+    // Last resort: stringify the entire object
+    try {
+      const stringified = JSON.stringify(error, null, 2);
+      return stringified.length > 500 
+        ? stringified.substring(0, 500) + '... (truncated)'
+        : stringified;
+    } catch {
+      // JSON.stringify can fail on circular references
+      return 'Unknown error (could not stringify)';
+    }
+  }
+  
+  // Primitive values (strings, numbers, etc.)
+  return String(error);
+}
+
+/**
+ * Convert any error to a proper Error instance
+ * Use this before throwing to ensure proper stack traces
+ * 
+ * @param error - Any error value
+ * @returns Error instance with formatted message
+ */
+export function toError(error: unknown): Error {
+  if (error instanceof Error) {
+    return error;
+  }
+  
+  const message = formatEdgeError(error);
+  const newError = new Error(message);
+  
+  // Preserve original error as property for debugging
+  (newError as any).originalError = error;
+  
+  return newError;
+}
diff --git a/supabase/functions/_shared/logger.ts b/supabase/functions/_shared/logger.ts
index 3b655c81..1a6219f5 100644
--- a/supabase/functions/_shared/logger.ts
+++ b/supabase/functions/_shared/logger.ts
@@ -3,6 +3,8 @@
  * Prevents sensitive data exposure and provides consistent log format
  */
 
+import { formatEdgeError } from './errorFormatter.ts';
+
 type LogLevel = 'info' | 'warn' | 'error' | 'debug';
 
 interface LogContext {
@@ -96,16 +98,17 @@ export function startSpan(
 /**
  * End a span with final status
  */
-export function endSpan(span: Span, status?: 'ok' | 'error', error?: Error): Span {
+export function endSpan(span: Span, status?: 'ok' | 'error', error?: unknown): Span {
   span.endTime = Date.now();
   span.duration = span.endTime - span.startTime;
   span.status = status || 'ok';
   
   if (error) {
+    const err = error instanceof Error ? error : new Error(formatEdgeError(error));
     span.error = {
-      type: error.name,
-      message: error.message,
-      stack: error.stack,
+      type: err.name,
+      message: err.message,
+      stack: err.stack,
     };
   }
   
diff --git a/supabase/functions/admin-delete-user/index.ts b/supabase/functions/admin-delete-user/index.ts
index bec05753..fe816f89 100644
--- a/supabase/functions/admin-delete-user/index.ts
+++ b/supabase/functions/admin-delete-user/index.ts
@@ -1,5 +1,6 @@
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.57.4';
 import { edgeLogger, startRequest, endRequest } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -348,7 +349,7 @@ Deno.serve(async (req) => {
         edgeLogger.warn('Error deleting avatar from Cloudflare', {
           requestId: tracking.requestId,
           targetUserId,
-          error: error instanceof Error ? error.message : String(error),
+          error: formatEdgeError(error),
           action: 'admin_delete_user'
         });
       }
@@ -417,7 +418,7 @@ Deno.serve(async (req) => {
       edgeLogger.warn('Error removing Novu subscriber', {
         requestId: tracking.requestId,
         targetUserId,
-        error: error instanceof Error ? error.message : String(error),
+        error: formatEdgeError(error),
         action: 'admin_delete_user'
       });
     }
@@ -521,7 +522,7 @@ Deno.serve(async (req) => {
         edgeLogger.warn('Error sending deletion notification email', {
           requestId: tracking.requestId,
           targetUserId,
-          error: error instanceof Error ? error.message : String(error),
+          error: formatEdgeError(error),
           action: 'admin_delete_user'
         });
       }
@@ -546,7 +547,7 @@ Deno.serve(async (req) => {
     edgeLogger.error('Unexpected error in admin delete user', {
       requestId: tracking.requestId,
       duration,
-      error: error instanceof Error ? error.message : String(error),
+      error: formatEdgeError(error),
       action: 'admin_delete_user'
     });
 
diff --git a/supabase/functions/cancel-account-deletion/index.ts b/supabase/functions/cancel-account-deletion/index.ts
index b8739c75..2b33c0f4 100644
--- a/supabase/functions/cancel-account-deletion/index.ts
+++ b/supabase/functions/cancel-account-deletion/index.ts
@@ -1,6 +1,7 @@
 import { serve } from 'https://deno.land/std@0.168.0/http/server.ts';
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2';
 import { edgeLogger, startRequest, endRequest } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -137,7 +138,7 @@ serve(async (req) => {
     );
   } catch (error) {
     const duration = endRequest(tracking);
-    edgeLogger.error('Error cancelling deletion', { action: 'cancel_deletion_error', error: error instanceof Error ? error.message : String(error), requestId: tracking.requestId, duration });
+    edgeLogger.error('Error cancelling deletion', { action: 'cancel_deletion_error', error: formatEdgeError(error), requestId: tracking.requestId, duration });
     return new Response(
       JSON.stringify({ error: error.message, requestId: tracking.requestId }),
       {
diff --git a/supabase/functions/cancel-email-change/index.ts b/supabase/functions/cancel-email-change/index.ts
index 4b3a14c4..518580dc 100644
--- a/supabase/functions/cancel-email-change/index.ts
+++ b/supabase/functions/cancel-email-change/index.ts
@@ -1,5 +1,6 @@
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.57.4';
 import { edgeLogger, startRequest, endRequest } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -149,7 +150,7 @@ Deno.serve(async (req) => {
       action: 'cancel_email_change',
       requestId: tracking.requestId,
       duration,
-      error: error instanceof Error ? error.message : String(error) 
+      error: formatEdgeError(error) 
     });
     return new Response(
       JSON.stringify({
diff --git a/supabase/functions/cleanup-old-versions/index.ts b/supabase/functions/cleanup-old-versions/index.ts
index 8f7e87b6..35a6b224 100644
--- a/supabase/functions/cleanup-old-versions/index.ts
+++ b/supabase/functions/cleanup-old-versions/index.ts
@@ -1,5 +1,6 @@
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2';
 import { edgeLogger } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -183,7 +184,7 @@ Deno.serve(async (req) => {
       }
     );
   } catch (error) {
-    edgeLogger.error('Cleanup job failed', { error: error instanceof Error ? error.message : String(error) });
+    edgeLogger.error('Cleanup job failed', { error: formatEdgeError(error) });
     
     return new Response(
       JSON.stringify({
diff --git a/supabase/functions/create-novu-subscriber/index.ts b/supabase/functions/create-novu-subscriber/index.ts
index f20f80bb..6ae4332a 100644
--- a/supabase/functions/create-novu-subscriber/index.ts
+++ b/supabase/functions/create-novu-subscriber/index.ts
@@ -1,6 +1,7 @@
 import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
 import { Novu } from "npm:@novu/api@1.6.0";
 import { edgeLogger } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -218,7 +219,7 @@ serve(async (req) => {
     } catch (topicError: unknown) {
       // Non-blocking - log error but don't fail the request
       edgeLogger.error('Failed to add subscriber to users topic', { 
-        error: topicError instanceof Error ? topicError.message : String(topicError),
+        error: formatEdgeError(topicError),
         subscriberId, 
         requestId: tracking.requestId 
       });
@@ -238,7 +239,7 @@ serve(async (req) => {
   } catch (error: unknown) {
     const duration = endRequest(tracking);
     edgeLogger.error('Error creating Novu subscriber', { 
-      error: error instanceof Error ? error.message : String(error),
+      error: formatEdgeError(error),
       requestId: tracking.requestId, 
       duration 
     });
diff --git a/supabase/functions/detect-location/index.ts b/supabase/functions/detect-location/index.ts
index e69a5bdb..293fbc21 100644
--- a/supabase/functions/detect-location/index.ts
+++ b/supabase/functions/detect-location/index.ts
@@ -1,5 +1,6 @@
 import { serve } from "https://deno.land/std@0.168.0/http/server.ts";
 import { edgeLogger, startRequest, endRequest } from "../_shared/logger.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -45,7 +46,7 @@ function cleanupExpiredEntries() {
     // CRITICAL: Increment failure counter and log detailed error information
     cleanupFailureCount++;
     
-    const errorMessage = error instanceof Error ? error.message : String(error);
+    const errorMessage = formatEdgeError(error);
     
     edgeLogger.error('Cleanup error', {
       attempt: cleanupFailureCount,
@@ -284,7 +285,7 @@ serve(async (req) => {
 
   } catch (error: unknown) {
     // Enhanced error logging for better visibility and debugging
-    const errorMessage = error instanceof Error ? error.message : String(error);
+    const errorMessage = formatEdgeError(error);
     
     edgeLogger.error('Location detection error', {
       error: errorMessage,
diff --git a/supabase/functions/export-user-data/index.ts b/supabase/functions/export-user-data/index.ts
index 0c230142..6a32dc58 100644
--- a/supabase/functions/export-user-data/index.ts
+++ b/supabase/functions/export-user-data/index.ts
@@ -2,6 +2,7 @@ import { serve } from 'https://deno.land/std@0.168.0/http/server.ts';
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.57.4';
 import { sanitizeError } from '../_shared/errorSanitizer.ts';
 import { edgeLogger, startRequest, endRequest } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -348,7 +349,7 @@ serve(async (req) => {
       action: 'export_error', 
       requestId: tracking.requestId,
       duration,
-      error: error instanceof Error ? error.message : String(error) 
+      error: formatEdgeError(error) 
     });
     const sanitized = sanitizeError(error, 'export-user-data');
     return new Response(
diff --git a/supabase/functions/mfa-unenroll/index.ts b/supabase/functions/mfa-unenroll/index.ts
index 73e75480..c31d272b 100644
--- a/supabase/functions/mfa-unenroll/index.ts
+++ b/supabase/functions/mfa-unenroll/index.ts
@@ -1,5 +1,6 @@
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.57.4';
 import { edgeLogger, startRequest, endRequest } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -186,7 +187,7 @@ Deno.serve(async (req) => {
       action: 'mfa_unenroll_error', 
       requestId: tracking.requestId,
       duration,
-      error: error instanceof Error ? error.message : String(error) 
+      error: formatEdgeError(error) 
     });
     return new Response(
       JSON.stringify({ 
diff --git a/supabase/functions/process-selective-approval/index.ts b/supabase/functions/process-selective-approval/index.ts
index 7e2755d2..2fed9865 100644
--- a/supabase/functions/process-selective-approval/index.ts
+++ b/supabase/functions/process-selective-approval/index.ts
@@ -13,6 +13,7 @@ import {
   extractSpanContextFromHeaders,
   type Span 
 } from '../_shared/logger.ts';
+import { formatEdgeError, toError } from '../_shared/errorFormatter.ts';
 
 const SUPABASE_URL = Deno.env.get('SUPABASE_URL') || 'https://api.thrillwiki.com';
 const SUPABASE_ANON_KEY = Deno.env.get('SUPABASE_ANON_KEY')!;
@@ -277,7 +278,7 @@ const handler = async (req: Request) => {
       }
 
       if (idempotencyError) {
-        throw idempotencyError;
+        throw toError(idempotencyError);
       }
     }
 
@@ -401,7 +402,7 @@ const handler = async (req: Request) => {
           requestId, 
           idempotencyKey,
           status: 'failed',
-          error: updateError instanceof Error ? updateError.message : String(updateError),
+          error: formatEdgeError(updateError),
           action: 'process_approval'
         });
         // Non-blocking - continue with error response even if idempotency update fails
@@ -461,7 +462,7 @@ const handler = async (req: Request) => {
         requestId, 
         idempotencyKey,
         status: 'completed',
-        error: updateError instanceof Error ? updateError.message : String(updateError),
+        error: formatEdgeError(updateError),
         action: 'process_approval'
       });
       // Non-blocking - transaction succeeded, so continue with success response
@@ -483,13 +484,13 @@ const handler = async (req: Request) => {
     );
 
   } catch (error) {
-    endSpan(rootSpan, 'error', error instanceof Error ? error : new Error(String(error)));
+    endSpan(rootSpan, 'error', error instanceof Error ? error : toError(error));
     logSpan(rootSpan);
     
     edgeLogger.error('Unexpected error', { 
       requestId, 
       duration: rootSpan.duration,
-      error: error instanceof Error ? error.message : String(error),
+      error: formatEdgeError(error),
       stack: error instanceof Error ? error.stack : undefined,
       action: 'process_approval'
     });
diff --git a/supabase/functions/process-selective-rejection/index.ts b/supabase/functions/process-selective-rejection/index.ts
index 4c4d3e36..133cf831 100644
--- a/supabase/functions/process-selective-rejection/index.ts
+++ b/supabase/functions/process-selective-rejection/index.ts
@@ -13,6 +13,7 @@ import {
   extractSpanContextFromHeaders,
   type Span 
 } from '../_shared/logger.ts';
+import { formatEdgeError, toError } from '../_shared/errorFormatter.ts';
 
 const SUPABASE_URL = Deno.env.get('SUPABASE_URL') || 'https://api.thrillwiki.com';
 const SUPABASE_ANON_KEY = Deno.env.get('SUPABASE_ANON_KEY')!;
@@ -280,7 +281,7 @@ const handler = async (req: Request) => {
       }
 
       if (idempotencyError) {
-        throw idempotencyError;
+        throw toError(idempotencyError);
       }
     }
 
@@ -404,7 +405,7 @@ const handler = async (req: Request) => {
           requestId, 
           idempotencyKey,
           status: 'failed',
-          error: updateError instanceof Error ? updateError.message : String(updateError),
+          error: formatEdgeError(updateError),
           action: 'process_rejection'
         });
         // Non-blocking - continue with error response even if idempotency update fails
@@ -464,7 +465,7 @@ const handler = async (req: Request) => {
         requestId, 
         idempotencyKey,
         status: 'completed',
-        error: updateError instanceof Error ? updateError.message : String(updateError),
+        error: formatEdgeError(updateError),
         action: 'process_rejection'
       });
       // Non-blocking - transaction succeeded, so continue with success response
@@ -486,13 +487,13 @@ const handler = async (req: Request) => {
     );
 
   } catch (error) {
-    endSpan(rootSpan, 'error', error instanceof Error ? error : new Error(String(error)));
+    endSpan(rootSpan, 'error', error instanceof Error ? error : toError(error));
     logSpan(rootSpan);
     
     edgeLogger.error('Unexpected error', { 
       requestId, 
       duration: rootSpan.duration,
-      error: error instanceof Error ? error.message : String(error),
+      error: formatEdgeError(error),
       stack: error instanceof Error ? error.stack : undefined,
       action: 'process_rejection'
     });
diff --git a/supabase/functions/receive-inbound-email/index.ts b/supabase/functions/receive-inbound-email/index.ts
index fb5a6696..eec30ca8 100644
--- a/supabase/functions/receive-inbound-email/index.ts
+++ b/supabase/functions/receive-inbound-email/index.ts
@@ -2,6 +2,7 @@ import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
 import { createClient } from "https://esm.sh/@supabase/supabase-js@2.57.4";
 import { edgeLogger, startRequest, endRequest } from "../_shared/logger.ts";
 import { createErrorResponse } from "../_shared/errorSanitizer.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -261,7 +262,7 @@ const handler = async (req: Request): Promise<Response> => {
   } catch (error) {
     edgeLogger.error('Unexpected error in receive-inbound-email', {
       requestId: tracking.requestId,
-      error: error instanceof Error ? error.message : String(error)
+      error: formatEdgeError(error)
     });
     return createErrorResponse(error, 500, corsHeaders);
   }
diff --git a/supabase/functions/scheduled-maintenance/index.ts b/supabase/functions/scheduled-maintenance/index.ts
index 8559e356..7f12379d 100644
--- a/supabase/functions/scheduled-maintenance/index.ts
+++ b/supabase/functions/scheduled-maintenance/index.ts
@@ -1,6 +1,7 @@
 import { serve } from 'https://deno.land/std@0.168.0/http/server.ts';
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.57.4';
 import { edgeLogger } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -55,7 +56,7 @@ serve(async (req: Request) => {
   } catch (error) {
     edgeLogger.error('Maintenance exception', { 
       requestId, 
-      error: error instanceof Error ? error.message : String(error) 
+      error: formatEdgeError(error) 
     });
     
     return new Response(
diff --git a/supabase/functions/send-admin-email-reply/index.ts b/supabase/functions/send-admin-email-reply/index.ts
index b120422a..02aedee0 100644
--- a/supabase/functions/send-admin-email-reply/index.ts
+++ b/supabase/functions/send-admin-email-reply/index.ts
@@ -2,6 +2,7 @@ import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
 import { createClient } from "https://esm.sh/@supabase/supabase-js@2.57.4";
 import { edgeLogger, startRequest, endRequest } from "../_shared/logger.ts";
 import { createErrorResponse } from "../_shared/errorSanitizer.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -237,7 +238,7 @@ const handler = async (req: Request): Promise<Response> => {
   } catch (error) {
     edgeLogger.error('Unexpected error in send-admin-email-reply', {
       requestId: tracking.requestId,
-      error: error instanceof Error ? error.message : String(error)
+      error: formatEdgeError(error)
     });
     return createErrorResponse(error, 500, corsHeaders);
   }
diff --git a/supabase/functions/send-contact-message/index.ts b/supabase/functions/send-contact-message/index.ts
index bab3d3a2..c342824e 100644
--- a/supabase/functions/send-contact-message/index.ts
+++ b/supabase/functions/send-contact-message/index.ts
@@ -2,6 +2,7 @@ import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
 import { createClient } from "https://esm.sh/@supabase/supabase-js@2.57.4";
 import { edgeLogger } from "../_shared/logger.ts";
 import { createErrorResponse } from "../_shared/errorSanitizer.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -335,7 +336,7 @@ The ThrillWiki Team`,
     edgeLogger.error('Contact submission failed', {
       requestId,
       duration,
-      error: error instanceof Error ? error.message : String(error)
+      error: formatEdgeError(error)
     });
     return createErrorResponse(error, 500, corsHeaders);
   }
diff --git a/supabase/functions/sitemap/index.ts b/supabase/functions/sitemap/index.ts
index 04f95410..68bbb6f4 100644
--- a/supabase/functions/sitemap/index.ts
+++ b/supabase/functions/sitemap/index.ts
@@ -1,5 +1,6 @@
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.57.4';
 import { edgeLogger } from '../_shared/logger.ts';
+import { formatEdgeError } from '../_shared/errorFormatter.ts';
 
 const BASE_URL = 'https://dev.thrillwiki.com';
 
@@ -347,7 +348,7 @@ Deno.serve(async (req) => {
     
     edgeLogger.error('Sitemap generation failed', {
       requestId,
-      error: error instanceof Error ? error.message : String(error),
+      error: formatEdgeError(error),
       duration,
     });
     
diff --git a/supabase/functions/upload-image/index.ts b/supabase/functions/upload-image/index.ts
index 0f188cb3..313fe5c0 100644
--- a/supabase/functions/upload-image/index.ts
+++ b/supabase/functions/upload-image/index.ts
@@ -2,6 +2,7 @@ import { serve } from "https://deno.land/std@0.168.0/http/server.ts"
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'
 import { edgeLogger, startRequest, endRequest } from '../_shared/logger.ts'
 import { rateLimiters, withRateLimit } from '../_shared/rateLimiter.ts'
+import { formatEdgeError } from '../_shared/errorFormatter.ts'
 
 // Environment-aware CORS configuration
 const getAllowedOrigin = (requestOrigin: string | null): string | null => {
@@ -94,7 +95,7 @@ async function reportBanEvasionToAlerts(
   } catch (error) {
     // Non-blocking - log but don't fail the response
     edgeLogger.warn('Failed to report ban evasion', { 
-      error: error instanceof Error ? error.message : String(error),
+      error: formatEdgeError(error),
       requestId 
     });
   }
@@ -227,8 +228,8 @@ serve(withRateLimit(async (req) => {
       try {
         requestBody = await req.json();
       } catch (error: unknown) {
-        const errorMessage = error instanceof Error ? error.message : String(error);
-        edgeLogger.error('Invalid JSON in delete request', { 
+        const errorMessage = formatEdgeError(error);
+        edgeLogger.error('Invalid JSON in delete request', {
           error: errorMessage, 
           requestId: tracking.requestId 
         });
diff --git a/supabase/functions/validate-email-backend/index.ts b/supabase/functions/validate-email-backend/index.ts
index 7cca29dc..5bab24aa 100644
--- a/supabase/functions/validate-email-backend/index.ts
+++ b/supabase/functions/validate-email-backend/index.ts
@@ -1,6 +1,7 @@
 import { serve } from "https://deno.land/std@0.168.0/http/server.ts";
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.39.3';
 import { edgeLogger } from "../_shared/logger.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -96,7 +97,7 @@ serve(async (req) => {
     );
   } catch (error) {
     const duration = endRequest(tracking);
-    const errorMessage = error instanceof Error ? error.message : String(error);
+    const errorMessage = formatEdgeError(error);
     edgeLogger.error('Email validation error', {
       error: errorMessage,
       requestId: tracking.requestId,
diff --git a/supabase/functions/validate-email/index.ts b/supabase/functions/validate-email/index.ts
index f20ab46f..07af9146 100644
--- a/supabase/functions/validate-email/index.ts
+++ b/supabase/functions/validate-email/index.ts
@@ -1,5 +1,6 @@
 import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
 import { startRequest, endRequest, edgeLogger } from "../_shared/logger.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -180,7 +181,7 @@ const handler = async (req: Request): Promise<Response> => {
     );
 
   } catch (error) {
-    const errorMessage = error instanceof Error ? error.message : String(error);
+    const errorMessage = formatEdgeError(error);
     edgeLogger.error('Error in validate-email function', {
       error: errorMessage,
       requestId: tracking.requestId