How to Build a Bilingual Wedding Invitation with RSVP → Google Sheets + Email Alerts

A bilingual wedding invitation should do more than look pretty: it should collect RSVPs, meal notes, and guest names into one spreadsheet your family can trust — and email you the moment someone replies. This guide shows a practical stack (marketing site + form + Google Sheets + email alerts) used for a real EN/KO wedding invitation for a couple coordinating guests across Canada and Korea.

If you are a couple, planner, or small studio building invitations for bilingual families, you can follow the same pattern without buying a wedding SaaS that locks guest data behind a subscription.

What this system solves

Most invitation tools fail bilingual families in three ways:

1. Language friction — half the guests need Korean, half need English, and “Google Translate the page” is not respectful UX.
2. Ops chaos — RSVPs live in texts, DMs, and emailed screenshots. Headcount and meal counts become guesswork.
3. No alerts — the couple finds out days later that someone replied “maybe” with a gluten-free note.

A working system has four jobs: invite, collect, store, notify.

Recommended stack (simple, durable)

You do not need a custom backend on day one. A reliable MVP looks like this:

| Layer | Option | Why | |---|---|---| | Invitation site | Next.js (or any static/SSR site) | Fast, mobile-first, easy bilingual routes | | Form | Site form → API route or Apps Script web app | You control fields | | Storage | Google Sheets | Couples already know Sheets; easy export | | Alerts | Email (Resend, Gmail Apps Script, etc.) | Real-time visibility | | Domain | Custom domain + HTTPS | Trust for older relatives |

DAOL’s Brian & Angie build followed this idea: bilingual mobile-first invitation, RSVP with attendance + party names + food notes, Sheets sync, and email notifications.

Step 1 — Design the invitation like an operations tool

Treat the page as a guest ops surface, not a mood board.

Above the fold: couple names, date, city, language toggle (EN | KO).
Next: schedule, venue (map link), stay info, dress code if needed, gallery.
Last primary CTA: “RSVP” — one button, repeated in the sticky footer on mobile.

Avoid putting the full form on the first screen. Guests need context before they commit.

Bilingual rule: do not auto-translate every sentence poorly. Write both languages deliberately for dates, addresses, and RSVP labels. Addresses and proper nouns stay consistent across languages so Maps links do not break.

Step 2 — Define RSVP fields before you build UI

Lock the spreadsheet columns first. Suggested schema:

| Column | Example | Notes | |---|---|---| | timestamp | ISO datetime | Auto | | language | en / ko | Which UI they used | | attending | yes / no / maybe | Keep enum tight | | guest_name | Primary name | Required | | party_names | Additional names | Free text or rows | | party_size | Number | Derived or explicit | | meal_notes | Allergies / preferences | Free text | | email | Optional | Only if you will follow up | | message | Optional | Keep short | | source | invite | Useful if you reuse the form |

Privacy tip: collect the minimum. If you do not need phone numbers, do not ask. Wedding data is personal — treat it like client PII.

Step 3 — Build the bilingual RSVP flow

Recommended UX:

1. Choose attendance.
2. Enter primary guest name.
3. Add accompanying guests (optional repeater).
4. Meal / allergy notes.
5. Confirm + thank-you screen in the same language.

Validation matters more than animation:

• Require attendance + primary name.
• Cap party size (e.g., max 6) to stop joke submissions.
• Honeypot or simple rate limit against spam bots.
• Show a clear success state; anxious guests will resubmit if they are unsure.

Step 4 — Connect submissions to Google Sheets

Two common patterns:

Pattern A — Google Apps Script web app

• Form POSTs JSON to a deployed Apps Script URL.
• Script appends a row with SpreadsheetApp.
• Script sends email via MailApp or GmailApp.

Pattern B — Your site API + Sheets API

• Next.js API route verifies the payload.
• Server uses a service account to append rows.
• Server sends email via Resend/Postmark.

Ops tip for couples: create one Sheet tab named RSVPs and a second tab Summary with COUNTIF formulas for attending / meals. Do not make the couple learn a dashboard product the week of the wedding.

Step 5 — Email alerts that humans actually read

Every new RSVP should trigger one email to the couple (and optionally the planner) with:

• Attending status
• Names
• Party size
• Meal notes
• Timestamp
• Link to the Sheet

Subject line example:
RSVP: Yes — Alex Kim (+2) — meal notes included

Keep PII out of marketing analytics events. Alerts are for humans, not ad pixels.

Step 6 — Soft launch with a pilot guest list

Before sending to 120 relatives:

1. Submit 5 test RSVPs in EN and KO.
2. Confirm row order and timezone on timestamps.
3. Confirm email delivery (and spam folder).
4. Export CSV once to prove the couple can hand data to catering.
5. Freeze the field schema — late column changes break formulas.

Pitfalls (learn these before launch weekend)

1. Split DNS / expired preview links — send the final custom domain, not a temporary *.vercel.app URL, once relatives start sharing.
2. Maybe without follow-up — if you allow maybe, decide who follows up and when.
3. Duplicate submissions — thank-you page should discourage “submit again”; consider showing a confirmation code.
4. One language only for elders — if parents only read Korean, the KO path must be first-class, not a toggle buried in the footer.
5. Sheets permissions — the couple needs edit access; guests should never see the Sheet URL.
6. Spam — public forms get bots. Honeypot + rate limit early.
7. Over-design — heavy video backgrounds kill mobile load for guests on LTE at the airport.

Who this is for (and who should hire help)

DIY-friendly if: you are comfortable with forms, a simple site deploy, and Apps Script.
Hire an agency if: you need bilingual copy polish, custom design, reliable email infra, domain/DNS cutover, or you want the invite to double as a lasting keepsake site.

Soft CTA

DAOL Consulting is a Calgary-based web design and development studio. We build bilingual (EN/KO) sites and lightweight ops tools for local businesses and families — including wedding invitations with RSVP → Google Sheets + email alerts.

If you want a production-ready invite (or a reusable template for your planning business), contact DAOL with your wedding date and language needs. We will tell you quickly whether DIY or a custom build fits better.

Related work: Brian & Angie Wedding · DAOL portfolio