The Scenario
You are a marketing operations manager. Your company just completed a workspace migration to a new Postmark server. The old server had 10 transactional email templates that need to be recreated.
Your team maintains those templates in an Excel workbook: template name in column A, subject line in column B, HTML body in column C of the 'Templates' tab. You need to push all 10 into the new server and get the returned template IDs into column D before the dev team flips the traffic on Monday.
The slow version:
- Open the new Postmark server dashboard
- Click "Create template," paste in name, subject, HTML
- Repeat ten times
- Manually copy each template ID into the workbook
- Make a typo in template 7, delete and redo it
- Half your Friday afternoon is gone.
The fast version is one prompt.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Excel workbook that reads the template rows and creates each one in Postmark via the API, writing the returned template ID back into the workbook.
Open the SheetXAI sidebar and type:
Create a Postmark email template for each row in the 'Templates' tab — template name in column A, subject in column B, HTML body in column C — and write the returned Postmark template ID into column D. If a row fails, write 'Error: [reason]' into column D.
SheetXAI reads all 10 rows, calls the Postmark template create endpoint for each one, and writes the template IDs back. Column D is the mapping the dev team needs.
What You Get
Ten templates created in the new Postmark server, with IDs in column D:
- Template IDs for all successful creates — ready to paste into the codebase
- Error reasons for any failures — specific enough to fix without guessing
- The workbook is now the source of truth for the new server configuration
If you later need to update templates in bulk, the same pattern works:
For each row in the 'Templates' tab where column D has a Postmark template ID, update the template using the new subject from column B and new HTML from column C. Write 'Updated' or 'Error: [reason]' into column E.
What If the Data Is Not Quite Ready
Template workbooks accumulate inconsistencies when multiple people have edited them.
When some rows already exist on the new server
The dev team started migrating manually and got through four of ten before stopping.
For each row in the 'Templates' tab where column D is blank, create a Postmark template using name from column A, subject from column B, and HTML from column C. Write the template ID into column D.
When the HTML bodies have stray smart quotes from a copy-paste
Rich text editors and email HTML do not always mix cleanly.
In the 'Templates' tab, replace smart quotes and curly apostrophes in column C with straight equivalents before creating the Postmark templates. Then create each template and write the returned ID into column D.
When a few subject lines are missing
Some rows in column B are blank because the copywriter has not finished.
For each row in the 'Templates' tab where columns A, B, and C are all non-blank, create a Postmark template and write the returned ID into column D. Skip rows where column B is empty and write 'Missing subject' in column D for those rows.
When you need to create templates, validate with a test send, and log the result in one shot
The team wants proof each template renders before the traffic switch.
Create a Postmark template for each row in the 'Templates' tab using name, subject, and HTML from columns A, B, and C. Write the returned template ID into column D. Then send a test email for each newly created template to test@example.com and write 'Test sent' or 'Test error: [reason]' into column E.
The pattern: instead of creating templates and then testing each one in the dashboard, you ask for both in one prompt and get a per-row status column to share with the dev team.
Try It
Get the 7-day free trial of SheetXAI and open your template spec workbook, then ask it to push all rows into Postmark. The Postmark integration is included in every SheetXAI plan. For related workflows, see how to batch-send Postmark templated emails from an Excel workbook or the Postmark in Excel overview.