The Scenario
You are a product manager. The team just hit its target: 500 early-access signups for the new newsletter. They live in a Google Sheet, column A is email, column B is first name, column C is last name.
The first broadcast goes out Thursday. Before it sends, every contact has to be in the "Product Updates" Resend audience.
The bad version:
- You ask the developer to write a script to add contacts to the audience
- She starts Monday, finishes Tuesday, but the audience ID is wrong and the import fails silently
- You find out Wednesday when you check the audience size in Resend and it is still zero
- She fixes the script, re-runs on five hundred rows, half succeed before the rate limit kicks in
- You send the broadcast to a partial audience and wonder why open rates look off.
The fast version is one prompt and the contacts are in the audience before lunch.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Google Sheet that talks to Resend directly, so you do not need a developer or a script to load the audience.
Open the SheetXAI sidebar and type:
Create a Resend audience called "Product Updates" if it does not already exist. Then add every row from the Signups sheet (A=email, B=first name, C=last name) as a contact to that audience. Write the Resend contact ID into column D for each row.
SheetXAI creates the audience if it is missing, then iterates through every row, adds each person as a Resend contact with their first and last name, and writes the contact ID back into column D. Five hundred rows, five hundred contacts, five hundred IDs logged.
What You Get
A completed sheet and a populated Resend audience:
- Column A — emails, untouched
- Column B — first names, untouched
- Column C — last names, untouched
- Column D — Resend contact IDs, one per row
The contact IDs in column D are your link between the sheet and Resend. If you need to update a contact's status later or remove someone from a segment, the ID is right there.
The Resend audience is ready for broadcast the moment SheetXAI finishes. You do not have to go into the Resend dashboard to verify; just check that column D has values in every row.
What If the Data Is Not Quite Ready
Signup lists rarely arrive clean. SheetXAI handles the cleanup and the audience import in the same prompt.
When the sheet has duplicate emails
You collected signups from two sources and some addresses appear in both.
Deduplicate the Signups sheet by column A, keeping the first occurrence of each email. Then add every unique row to the "Product Updates" Resend audience and write contact IDs in column D.
When first or last name fields are inconsistently capitalized
Some rows have all-caps names from an older form, others are lowercase.
Normalize the names in columns B and C to title case. Then add every row from the Signups sheet to the "Product Updates" Resend audience with the normalized names, logging contact IDs in column D.
When you only want to import contacts who opted into this specific newsletter
Column D has an opt-in flag ("yes" or "no") and you only want the "yes" rows.
Filter the Signups sheet to rows where column D equals "yes". Add each matching row to the "Product Updates" Resend audience (A=email, B=first name, C=last name) and write the contact ID into column E.
When the audience, dedup, normalization, and import all need to happen in one shot
You just exported a raw signup CSV with duplicates, mixed-case names, and an unfiltered opt-in column. You want everything done before Thursday.
Look at the Signups sheet. Deduplicate by column A, keeping the first occurrence. Normalize columns B and C to title case. Filter to rows where column D equals "yes". Create a Resend audience called "Product Updates" if it does not exist. Add each filtered row as a contact with first name, last name, and email. Write the contact ID in column E and any errors in column F.
The pattern: the data work and the API call happen together. No pre-processing step, no hand-off to a developer, no Thursday-morning scramble.
Try It
Get the 7-day free trial of SheetXAI and open any sheet with subscriber data, then ask it to create the Resend audience and import the contacts. The Resend integration is included in every SheetXAI plan. For what comes next, see how to bulk-assign contacts to segments or the Resend in Google Sheets overview.