fix(polling): don't advance state when all events fail across sheets, calendar, drive handlers

apps/sim/lib/webhooks/polling/google-calendar.ts

@@ -140,8 +140,10 @@ export const googleCalendarPollingHandler: PollingProviderHandler = {
         logger
       )
 
-      // Use the latest `updated` value from response to avoid clock skew
-      const newTimestamp = latestUpdated || now.toISOString()
+      const newTimestamp =
+        processedCount === 0 && failedCount > 0
+          ? config.lastCheckedTimestamp
+          : latestUpdated || now.toISOString()
       await updateWebhookProviderConfig(webhookId, { lastCheckedTimestamp: newTimestamp }, logger)
 
       if (failedCount > 0 && processedCount === 0) {

apps/sim/lib/webhooks/polling/google-drive.ts

@@ -151,9 +151,13 @@ export const googleDrivePollingHandler: PollingProviderHandler = {
         MAX_KNOWN_FILE_IDS
       )
 
+      const allFailed = processedCount === 0 && failedCount > 0
       await updateWebhookProviderConfig(
         webhookId,
-        { pageToken: newStartPageToken, knownFileIds: mergedKnownIds },
+        {
+          pageToken: allFailed ? config.pageToken : newStartPageToken,
+          knownFileIds: allFailed ? existingKnownIds : mergedKnownIds,
+        },
         logger
       )
 

apps/sim/lib/webhooks/polling/google-sheets.ts

@@ -182,14 +182,8 @@ export const googleSheetsPollingHandler: PollingProviderHandler = {
         logger
       )
 
-      // Advance row count only by successfully processed rows so failed rows
-      // can be retried on the next poll cycle. Idempotency deduplicates the
-      // already-processed rows when they are re-fetched.
-      const rowsAdvanced = failedCount > 0 ? processedCount : rowsToFetch
+      const rowsAdvanced = failedCount > 0 ? 0 : rowsToFetch
       const newLastKnownRowCount = config.lastKnownRowCount + rowsAdvanced
-      // When batching (more rows than maxRowsPerPoll) or retrying failed rows,
-      // keep the old lastModifiedTime so the Drive pre-check doesn't skip
-      // remaining/retried rows on the next poll.
       const hasRemainingOrFailed = rowsAdvanced < newRowCount
       await updateWebhookProviderConfig(
         webhookId,