The Scenario
You are an email developer at a SaaS company. The product rebrand ships next week. You have 10 email templates in a Google Sheet — template ID in column A, updated subject line in column B, and the full new HTML body in column C. Every one of them needs to be pushed to Brevo before the first campaign goes out Monday.
The bad version of this week:
- You log into Brevo and navigate to Email Templates
- You open template 1, paste in the new subject line, paste in the new HTML, save
- You realize Brevo's template editor reformatted your HTML on paste and you have to fix the rendering
- You do it for template 2 and hit the same issue
- You finish 3 templates in two hours
- You have 7 more to go and a code review at 2 PM
- You are updating Brevo templates at midnight before the launch.
The fast version is one prompt.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your spreadsheet that reads the template ID, subject line, and HTML from your sheet and pushes the updates to Brevo directly, without you touching the template editor.
Open the SheetXAI sidebar and type:
For every row in this sheet with a template ID in column A, a subject line in column B, and HTML in column C, update the corresponding Brevo email template with the new subject and HTML body. Write "UPDATED" in column D for each successful update, or the error message if the update fails.
SheetXAI reads all 10 rows and calls Brevo's template API to update each one. Column D fills with "UPDATED" or an error. The rebrand is live in Brevo before your 2 PM code review.
What You Get
10 Brevo email templates updated with:
- New subject line — from column B
- New HTML body — from column C, passed as-is without reformatting
- Status in column D — "UPDATED" or the error text, per row
The HTML is passed directly to Brevo's API, not pasted into a visual editor. There is no reformatting, no tag-stripping, no layout breakage.
Want to create new templates instead of updating existing ones? Remove the ID column and ask SheetXAI to create instead of update. It will write the new template ID back into column A for each row.
What If the Data Is Not Quite Ready
Template batches always have a few problem rows. SheetXAI handles them without stopping the rest of the batch.
When some rows have no template ID and need to be created as new templates
Half the rows in the sheet are updates to existing templates, and half are brand-new templates that need to be created.
For rows in this sheet where column A has a template ID, update the corresponding Brevo template with the subject in column B and HTML in column C. For rows where column A is blank, create a new Brevo template using the name in column B as the template name and HTML in column C. Write the result (UPDATED or the new template ID) into column D for each row.
When the HTML has placeholder tokens that need to be validated first
Your HTML uses {{first_name}} and {{company_name}} merge tags. You want to confirm every template has the key placeholders before pushing.
For each row in this sheet, check that the HTML in column C contains at least the placeholders {{first_name}} and {{unsubscribe_link}}. If a row is missing either one, write "MISSING PLACEHOLDER" in column D and skip it. For all other rows, update the Brevo template with the subject from column B and HTML from column C.
When subject lines need a prefix added for A/B test variants
The subject lines in column B are the control variants. You want SheetXAI to create a second set of template updates with "[TEST] " prepended to the subject.
For every row in this sheet, update the Brevo template at the ID in column A with subject from column B and HTML from column C. Then, for each of those same templates, create a duplicate Brevo template with the same HTML but with "[TEST] " added to the front of the subject line. Write the new duplicate template ID in column E.
When you want the full batch done and a summary in one shot
The email ops lead wants to know how many templates updated successfully, how many failed, and a list of any template IDs that errored — all without logging into Brevo.
Update all 10 Brevo email templates using the template ID in column A, subject in column B, and HTML in column C. Write "UPDATED" or the error in column D for each row. When all rows are processed, write a summary in column F: total updated in F1, total errors in F2, and a list of any errored template IDs in F3 onward.
The pattern: the sheet is the source of truth for your template library. You push changes to Brevo from the sheet without touching Brevo's UI.
Try It
Get the 7-day free trial of SheetXAI and put your template IDs, subject lines, and HTML in a sheet, then ask SheetXAI to push the updates to Brevo. The Brevo integration is included in every SheetXAI plan. For related workflows, see how to pull email campaign stats into a sheet or the Brevo in Google Sheets overview.