diff --git a/app/agenda/page.tsx b/app/agenda/page.tsx
index e24f422..4af70b3 100644
--- a/app/agenda/page.tsx
+++ b/app/agenda/page.tsx
@@ -594,13 +594,25 @@ export default async function CalendarPage() {
         syncMicrosoftCalendar(syncConfig.id, true).then((result) => {
           console.log(`[AGENDA] Microsoft sync completed:`, {
             calendarSyncId: syncConfig.id,
+            calendarId: syncConfig.calendarId,
             synced: result.synced,
             created: result.created,
             updated: result.updated,
+            deleted: result.deleted,
+          });
+          
+          // Verify events were created by checking the database
+          prisma.event.count({
+            where: { calendarId: syncConfig.calendarId }
+          }).then((count) => {
+            console.log(`[AGENDA] Total events in calendar ${syncConfig.calendarId} after sync: ${count}`);
+          }).catch((err) => {
+            console.error('[AGENDA] Error counting events:', err);
           });
         }).catch((error) => {
           console.error('[AGENDA] Background sync failed for Microsoft calendar', {
             calendarSyncId: syncConfig.id,
+            calendarId: syncConfig.calendarId,
             error: error instanceof Error ? error.message : String(error),
             stack: error instanceof Error ? error.stack : undefined,
           });
@@ -738,7 +750,16 @@ export default async function CalendarPage() {
   const calendarsWithSync = calendars.filter(cal => cal.syncConfig);
   console.log(`[AGENDA] Total calendars with syncConfig: ${calendarsWithSync.length}`);
   calendarsWithSync.forEach(cal => {
-    console.log(`[AGENDA] Calendar: ${cal.name}, provider: ${cal.syncConfig?.provider}, syncEnabled: ${cal.syncConfig?.syncEnabled}, hasMailCredential: ${!!cal.syncConfig?.mailCredential}`);
+    const eventCount = cal.events?.length || 0;
+    console.log(`[AGENDA] Calendar: ${cal.name}, provider: ${cal.syncConfig?.provider}, syncEnabled: ${cal.syncConfig?.syncEnabled}, hasMailCredential: ${!!cal.syncConfig?.mailCredential}, events: ${eventCount}`);
+    if (eventCount > 0 && cal.syncConfig?.provider === 'microsoft') {
+      console.log(`[AGENDA] Microsoft calendar events:`, cal.events.slice(0, 5).map(e => ({
+        id: e.id,
+        title: e.title,
+        start: e.start,
+        end: e.end
+      })));
+    }
   });
 
   const now = new Date();
diff --git a/lib/services/microsoft-calendar-sync.ts b/lib/services/microsoft-calendar-sync.ts
index a351d03..a9939f3 100644
--- a/lib/services/microsoft-calendar-sync.ts
+++ b/lib/services/microsoft-calendar-sync.ts
@@ -163,18 +163,28 @@ export async function fetchMicrosoftEvents(
     });
 
     // Get events from Microsoft Graph API
-    const response = await axios.get(
-      `https://graph.microsoft.com/v1.0/me/calendars/${calendarId}/events`,
-      {
-        headers: {
-          Authorization: `Bearer ${accessToken}`,
-          'Content-Type': 'application/json',
-        },
-        params,
-      }
-    );
+    const url = `https://graph.microsoft.com/v1.0/me/calendars/${calendarId}/events`;
+    logger.debug('Fetching Microsoft events', {
+      url,
+      params: JSON.stringify(params),
+    });
+    
+    const response = await axios.get(url, {
+      headers: {
+        Authorization: `Bearer ${accessToken}`,
+        'Content-Type': 'application/json',
+      },
+      params,
+    });
 
-    return response.data.value || [];
+    const events = response.data.value || [];
+    logger.debug('Microsoft Graph API response', {
+      calendarId,
+      eventCount: events.length,
+      hasValue: !!response.data.value,
+    });
+
+    return events;
   } catch (error) {
     logger.error('Error fetching Microsoft events', {
       userId,
@@ -307,6 +317,15 @@ export async function syncMicrosoftCalendar(
         end: e.end.dateTime || e.end.date
       })),
     });
+    
+    if (microsoftEvents.length === 0) {
+      logger.warn('No Microsoft events found', {
+        calendarSyncId,
+        email: creds.email,
+        externalCalendarId: syncConfig.externalCalendarId,
+        dateRange: { start: startDate.toISOString(), end: endDate.toISOString() },
+      });
+    }
 
     // Convert Microsoft events to CalDAV-like format
     const caldavEvents = microsoftEvents.map(convertMicrosoftEventToCalDAV);
@@ -419,10 +438,22 @@ export async function syncMicrosoftCalendar(
     logger.info('Microsoft calendar sync completed', {
       calendarSyncId,
       calendarId: syncConfig.calendarId,
+      email: creds.email,
       synced: caldavEvents.length,
       created,
       updated,
+      deleted,
     });
+    
+    // Log summary of created/updated events
+    if (created > 0 || updated > 0) {
+      logger.info('Microsoft calendar sync summary', {
+        calendarSyncId,
+        newEventsCreated: created,
+        eventsUpdated: updated,
+        totalEventsInCalendar: caldavEvents.length,
+      });
+    }
 
     return {
       synced: caldavEvents.length,