how to create a recurring event with CalendarApp.newRecurrence.addWeeklyRule.onlyOnWeekdays MONDAY
| Platform | Google Apps Script, Calendar Automation with CalendarApp: 2026 |
|---|---|
| Category | Automation Tools |
| Guide type | Procedure |
| Skill level | Beginner to intermediate |
| Time | 5 - 30 minutes including verification |
Running into how to create a recurring event with CalendarApp.newRecurrence.addWeeklyRule.onlyOnWeekdays MONDAY on Google Apps Script, Calendar Automation with CalendarApp, 2026 is one of the more common stalls I see when I am deep in a scenario or a script and the platform suddenly refuses to cooperate. My standard pattern for this is to capture the run history first, then walk the fix below - here is what actually moves the needle when the vendor docs are too generic and you do not have time to file a support ticket.
What how to create a recurring event with calendarapp.newrecurrence.addweeklyrule.onlyonweekdays monday actually involves on Google Apps Script, Calendar Automation with CalendarApp, 2026
On Google Apps Script, Calendar Automation with CalendarApp, 2026 the first three tools that earn their keep are Google Calendar UI event change history pane, clasp logs, Calendar event details JSON via Calendar Advanced Service. Each of these surfaces a different layer of the failure - keep at least the first one in your personal notes so the next time this happens you do not start cold.
For verification on Google Apps Script, Calendar Automation with CalendarApp, 2026, the methods that survive contact with a real Monday-morning workload are Logger.log(JSON.stringify(event.getGuestList().map(g => g.getEmail()))) and Logger.log(event.getStartTime().toISOString()). Anything less than that and you are shipping on vibes.
Authoritative sources for Google Apps Script, Calendar Automation with CalendarApp, 2026 that I cross-reference before committing to a fix: developers.google.com/calendar/api/v3/reference, tools.ietf.org/html/rfc5545, developers.google.com/apps-script/guides/services/quotas. Marketing blog posts and Medium writeups are signal, not ground truth.
The rest of this page is the structured fix path. Start with diagnose, then remediation, then the automation options so you do not have to do this by hand the next time it surfaces. Verify and safety sections at the end are the discipline that keeps the fix from regressing the next time you open the platform.
Identify
Fifth: replay the failing run against a second account or a second connector on the same Google Apps Script, Calendar Automation with CalendarApp, 2026 workspace. The point is to isolate "my credentials" from "my account" from "the whole workspace." If a teammate's identical scenario works but yours does not, the failure is local cache or a stale OAuth grant. If the same scenario fails for everyone in the same workspace, you have a tenant-wide config change or a vendor-side incident. Pin the platform version explicitly while you do this: the platform's About panel, the build hash in the footer, or the engine version returned by a diagnostic call. The version pin is what isolates "their rollout broke me" from "my client is out of date."
Start by capturing the exact failure signal in writing before you change a single thing on your Google Apps Script, Calendar Automation with CalendarApp, 2026 setup. In the browser that is the failing request in DevTools Network tab (right-click, Copy as cURL) plus the JS console error. In the platform UI that is the error toast text, the timestamp, and the scenario or workspace id from the URL. On the Google Apps Script, Calendar Automation with CalendarApp, 2026 status page capture the incident id and timestamp. Screenshot it. Do not paraphrase. Most Google Apps Script, Calendar Automation with CalendarApp, 2026 support workflows will not even route the ticket without the workspace id or correlation id - the support rep pastes it straight into the internal trace tool and the first response is "we see your request, here is what the backend logged."
Second pass: open the Google Apps Script, Calendar Automation with CalendarApp, 2026 workspace admin or settings panel and look at the audit log or activity feed for the failing window. Most modern automation platforms surface an audit trail (the platform's execution history, the connector run log, the integration activity feed). The audit log tells you whether the failure was your action, a teammate changing a connected account in the same minute, or a platform-side rollout. Many "permission denied" or "connection not found" reports trace to a credential-level change pushed in the same admin panel in the previous hour - the audit trail makes that obvious without guesswork.
Field notes from real Google Apps Script, Calendar Automation with CalendarApp, 2026 incidents
The fastest sanity check I know for an Google Apps Script change is `Logger.log(event.getStartTime().toISOString())`; if that returns the expected value, I ship the flow and move on. I keep Apps Script Executions dashboard docked on a second screen whenever I am building inside Google Apps Script; one glance tells me whether the run actually fired or silently skipped.
In Google work, the cost of guessing is almost always higher than the cost of reading the Google Apps Script changelog, read the changelog first. On any Google problem in Google Apps Script, the first three questions I ask are: which runtime, which tenant, which trigger source. Defaults shift quietly between platform updates.
Tools I actually reach for
For most Google Apps Script, Calendar Automation with CalendarApp, 2026 stalls I start with Apps Script Editor Execution log, fall back to Cloud Logging Logs Explorer, Calendar event details JSON via Calendar Advanced Service, appsscript.json oauthScopes inspector when Apps Script Editor Execution log cannot surface the answer, and keep Calendar API Explorer handy for the cases where neither answers. That ordering is not academic - it matches the layers of the failure as they tend to surface, so the cheapest signal lands first and the heavier tooling only comes out when the simpler answer does not hold up. My muscle-memory shortcut for this is to run the first tool while the failing screen is still open, not after I have already restarted the platform.
Verification I run before I call it fixed
Before I mark a Google Apps Script, Calendar Automation with CalendarApp, 2026 stall resolved, the verification loop below is what I actually run. Each step proves a different layer is green, and the order matters - the cheaper checks gate the more expensive ones.
console.log(Calendar.Events.get('primary', eventId))If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.
Logger.log(CalendarApp.getDefaultCalendar().getId())If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.
clasp logs --jsonOnly when every line above runs clean do I close the loop and update my notes with the timestamps.
Where I check first when the docs disagree
When two sources contradict each other on a Google Apps Script, Calendar Automation with CalendarApp, 2026 detail, the disambiguation order I lean on is stable. I usually check developers.google.com/apps-script/reference/calendar for the ground-truth view on this part of Google Apps Script, Calendar Automation with CalendarApp, 2026. I usually check developers.google.com/apps-script/guides/services/quotas for the ground-truth view on this part of Google Apps Script, Calendar Automation with CalendarApp, 2026. I usually check developers.google.com/calendar/api/v3/reference for the ground-truth view on this part of Google Apps Script, Calendar Automation with CalendarApp, 2026. I usually check tools.ietf.org/html/rfc5545 for the ground-truth view on this part of Google Apps Script, Calendar Automation with CalendarApp, 2026. Marketing blog posts and Medium writeups are signal, not ground truth, and I treat them as such until the references above either confirm or contradict the claim.
Solution-focused remediation path
Start by sorting the Google Apps Script, Calendar Automation with CalendarApp, 2026 failure into one of three buckets, because roughly 80% of cases fall here. Bucket one is auth / account drift: you are signed into the wrong account, the SSO session expired, MFA tripped, or the workspace owner changed your role. Bucket two is sync / cache drift: the platform has a stale view of the connector, the offline cache disagrees with the cloud, or a recent edit has not synced yet. Bucket three is plan / quota / sharing: the action requires a higher plan tier, the workspace hit an operation or task cap, or the connector you are trying to use was revoked. Pick the bucket first, then act. Before you act, capture a baseline screenshot of the failing run plus the run id so you can prove whether the fix actually moved the needle. Decision point: if the failure is intermittent and you are on a paid Business / Enterprise plan, open the in-product support chat first - vendor support on a paid tenant beats hours of speculative debugging on cost and on liability if the failure recurs.
When the Google Apps Script, Calendar Automation with CalendarApp, 2026 fault tracks to integration failures, automation delays, or webhook drops from the trigger source (the trigger source, the connector, the upstream provider), treat the integration plane as suspect. Open the integration log in the connected service (the trigger source's webhook log, the platform's connector run history) and read the response status the Google Apps Script, Calendar Automation with CalendarApp, 2026 endpoint actually returned - most "scenario not firing" reports are actually "webhook firing but the connector failed and the platform backed off." Verify the connected account is still authorized (the OAuth grant in Google Apps Script, Calendar Automation with CalendarApp, 2026 is not silently revoked) and that the trigger event is what you think it is. Decision point: if the trigger is firing but Google Apps Script, Calendar Automation with CalendarApp, 2026 is rate-limiting it, throttle the scenario (bump the polling interval, add a sleep module, enable batch mode) and re-run. Verify the connected workspace is the right workspace - a common foot-gun is the personal workspace being authorized while the work workspace holds the data.
If the Google Apps Script, Calendar Automation with CalendarApp, 2026 symptom started after a platform auto-update, a browser extension install, or a workspace setting change, treat versioning and environment as the prime suspect. Roll the platform back to the previous build if the Google Apps Script, Calendar Automation with CalendarApp, 2026 platform supports it (most do not auto-rollback - in that case, sign in on the web app to bypass the desktop build entirely while you wait for a fix). Open a private / incognito browser window with no extensions, sign in, and reproduce; if private-window works, the issue is a browser extension or a cached service worker. If both desktop and private-web fail with the same payload and the same account, you have an account-level or workspace-level issue. Decision point: if the rolled-back or private-window session still fails and you are on a paid plan, open the in-product help chat with the failing screenshot; on the free tier the path is the community forum or r/apps with a minimal reproduction. Save the working platform version to your notes so the next rollback is a one-line "pin to build X."
Automate this fix so you do not do it twice
Monitor + alert via Google Apps Script, Calendar Automation with CalendarApp, 2026 admin reports, audit logs, and personal dashboard ingestion
For the Google Apps Script, Calendar Automation with CalendarApp, 2026, the most useful long-running telemetry is the admin reports + audit logs shipped to a personal dashboard (Google Sheets daily import, Airtable scheduled sync, Notion database via the API, Grafana with a CSV source) and graphed on a single view. Pair that with synthetic monitoring (a small script that triggers the failing scenario or runs the failing action every 5 minutes from at least two devices) so a regional incident lights up before teammates report it. Subscribe the personal inbox or a private Slack channel to the Google Apps Script, Calendar Automation with CalendarApp, 2026 status page (Atom/RSS or Statuspage webhook) plus the vendor X/Twitter status handle so an open incident self-correlates with the synthetic failures.
# Tiny synthetic monitor - hit the Google Apps Script, Calendar Automation with CalendarApp, 2026 health endpoint every 5 minutes
while true; do curl -s -o /dev/null -w "%{http_code} %{time_total} $(date -Iseconds)\n" \ -H "Authorization: Bearer $TOKEN" \ https://api.example.com/v1/me \ >> ~/logs/apps-synth.log sleep 300
doneAutomate Google Apps Script, Calendar Automation with CalendarApp, 2026 session + sharing-policy snapshots via vendor CLI or API
On the Google Apps Script, Calendar Automation with CalendarApp, 2026, regular session and policy snapshots catch silent role changes, sharing-default drift, and stale OAuth grants well before the workflow starts failing in prod. Pair vendor health checks (the platform's admin SDK, the platform's users API, the connector listing) with a token-validity check so both vendor-side and account-side issues land in one folder. Run the scheduled task on a control plane device (a small VPS, a GitHub Actions runner, a Cloud Function) under a tightly scoped service account that mirrors the real workspace policy.
# List workspace members + roles
curl -H "Authorization: Bearer $PLATFORM_TOKEN" \ https://api.example.com/v1/workspace/members \ > apps-members.json
# List active connectors + their last-tested timestamp
curl -H "Authorization: Bearer $PLATFORM_TOKEN" \ https://api.example.com/v1/connectors \ > apps-connectors.json
# Validate the bearer token itself
curl -H "Authorization: Bearer $PLATFORM_TOKEN" \ https://api.example.com/v1/me \ > apps-me.jsonFleet API token + OAuth grant rotation via vendor admin
Rotating a personal access token on one Google Apps Script, Calendar Automation with CalendarApp, 2026 workspace by hand is fine; rotating across a team of workspaces is how you end up with twelve different tokens, four expired ones, and an unknown blast radius. Drive rotation through the Google Apps Script, Calendar Automation with CalendarApp, 2026 admin SDK or REST under a service account with the rotation scope only, store the new token in a personal password manager (1Password, Bitwarden, vendor secrets manager) with versioning enabled, and roll the consumer scripts one workspace at a time with a health check between each. Pin the API version explicitly during rotation so a coincident vendor rollout does not look like a rotation failure.
# Rotate the platform API token (regenerate via the admin UI, capture in 1Password)
op item create --vault Work --category "API Credential" \ --title "apps platform token 2026-05-31" \ password="$NEW_PLATFORM_TOKEN" notes="Rotated $(date -Iseconds)"
# Capture the old token as deprecated so cutover is reversible
op item create --vault Work --category "API Credential" \ --title "apps platform token OLD 2026-05-31" \ password="$OLD_PLATFORM_TOKEN" notes="Old token marked deprecated"
Pitfalls to dodge
The deepest trap with Google Apps Script, Calendar Automation with CalendarApp, 2026 workflows is treating a recurring class of failure as a one-off incident. A connector hang or a sharing 403 burst gets papered over with a sign-out / sign-in or a re-auth, the platform runs for two weeks, and the exact same signature returns because the root cause was never identified. Codify every case in a personal notes entry, save the working platform version (the About panel) in the same note, and write the exact workspace settings, sharing policy, and connected-apps list into a checklist. After any major platform update on Google Apps Script, Calendar Automation with CalendarApp, 2026 review the workspace settings and the connected-apps grants explicitly, since vendors silently grant or revoke permissions between major releases.
The second half of this pitfall is confirming the fix on a single device when the team is identical. If you and three teammates use the same Google Apps Script, Calendar Automation with CalendarApp, 2026 workspace on the same plan, a vendor-side rollout tends to bite a whole batch within the same hour. Verify on every device and account that touches the failing workflow, log the result and the platform version per attempt, and only then declare the class closed.
Resolve
- Reproduce the original failing run against Google Apps Script, Calendar Automation with CalendarApp, 2026 on the same device AND a second device with the same account. If the failing toast or error code still surfaces on any device, you have not fixed it.
- Watch for 24 to 48 hours via the Google Apps Script, Calendar Automation with CalendarApp, 2026 workspace audit log + the integration history + your personal notes. Cached error states and CDN caches mask slow-burn drift and intermittent regional issues.
- Smoke-test under realistic load: replay the workflow against a test workspace for at least 30 minutes at your normal working pace, log success / error and the timestamp per attempt to a notes file.
- Capture the new state in a personal notes entry so the next time this happens you do not rediscover it. Note platform version + workspace policy + connected-apps list + failing screenshot + verbatim error string + fix applied. Push to a shared team wiki if your team uses one.
- If the fix involved an API token rotation or a workspace policy change, commit the new token to your password manager and screenshot the workspace settings for archival.
Safety, rollback, blast radius
- Test in a Google Apps Script, Calendar Automation with CalendarApp, 2026 test workspace or on a duplicate scenario first before any change that touches the real workspace. Snapshot the platform version, the workspace settings, the connected-apps list, and the sharing policy before changing anything.
- Apply the principle of least surprise when granting share access or connected-app permissions. Review the share list against the people who actually need access - extra shares are extra blast radius.
- Use idempotent runs where the Google Apps Script, Calendar Automation with CalendarApp, 2026 API supports it (the platform's run id de-dupe, external id keys on destination records) so a retried run does not create duplicate records.
- Know your rollback path. Platform version rollback is a one-line download-and-install; an API token rotation is reversible if you kept the old token in the password manager during cutover; a workspace policy change is reversible only if you saved the previous policy in a screenshot.
- For team-wide or workspace-wide changes, line up a maintenance window with team notification before pushing through the admin console.
FAQ
References
- Vendor help center for Google Apps Script, Calendar Automation with CalendarApp: 2026 (official help articles, API docs, Trust Center)
- Community forums (r/nocode, r/automation, r/GoogleAppsScript, r/PowerAutomate, r/n8n, r/make, r/ClaudeAI, vendor community)
- In-product help and the Google Apps Script, Calendar Automation with CalendarApp. 2026 changelog
- Vendor status pages and X/Twitter status handles, plus post-mortem incident reports
Related fixes
Related guides worth a look while you sort this one out:
- how to delete only future occurrences of a recurring event with CalendarEvent.deleteEvent vs deleteEventSeries
- how to fix CalendarApp returning an event with a different timezone than the user expects via setTime
- how to migrate a recurring event from EXDATE-based skips to a Sheet-driven generator
- how to write an all-day event with CalendarApp.createAllDayEvent and avoid the off-by-one UTC drift
- how to attach a Drive file to an event via Calendar Advanced Service events.update attachments
- how to attach a Meet link by creating an event through the Calendar Advanced Service events.insert with conferenceData