The Scenario
Your data team ran an account enrichment pass last week. The results are in a Google Sheet: 1,100 rows, email in column A, updated account tier in column B, region in column C. Every one of those records has an existing Enginemailer subscriber. The custom fields on those subscriber records are stale. The segmented campaign that depends on accurate tiers and regions is scheduled for next Tuesday.
You didn't sign up to be the person who manually updates 1,100 subscriber records. But here you are.
The bad version:
- Export the current Enginemailer subscriber list, merge it with the enrichment sheet in Excel to confirm you have the right records, then build a new import file with just the updated custom field columns.
- Upload the import file to Enginemailer's custom field import, realize the import replaces rather than merges the fields and you need to include all existing field values to avoid blanking out columns you're not touching.
- Download a full subscriber export to get the existing field values, re-merge everything, re-upload, and check the import log for errors — which will reference row numbers that don't match your spreadsheet.
The enriched values are right there in columns B and C. The subscribers already exist in Enginemailer. This should be a push, not a reconstruction.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Google Sheet. It reads the enrichment data and pushes the new field values directly to each Enginemailer subscriber — no export, no merge, no re-import.
For each row in my 'Field Updates' Google Sheet, update the Enginemailer subscriber identified by the email in column A — set 'account_tier' to column B and 'region' to column C.
What You Get
- Each subscriber identified by email, then updated in Enginemailer with the new 'account_tier' value from column B and the new 'region' value from column C.
- Existing custom fields not included in the prompt are left untouched — no accidental blanking of fields you didn't intend to modify.
- Status written back for each row so you can see at a glance which records updated, which were not found, and which returned errors.
- No export-and-reimport loop — the update is a direct write to each subscriber record.
What If the Data Is Not Quite Ready
Some column B values use different casing than Enginemailer's accepted enum values
"enterprise" in the sheet needs to match "Enterprise" in Enginemailer's custom field options.
For each row in my 'Field Updates' sheet, update the Enginemailer subscriber in column A — set 'account_tier' to the title-cased version of column B and 'region' to column C. Write the update result to column D.
Columns B through F all contain custom field updates, not just two fields
The enrichment pass populated five custom fields per subscriber.
Take all rows in my 'Field Updates' sheet and push the new custom field values from columns C through F into each matching Enginemailer subscriber record identified by email in column A. Columns C, D, E, F correspond to fields 'account_tier', 'region', 'industry', and 'employee_count'. Write the result to column G.
Some rows have blank values in column B or C and should not overwrite existing data
Blank cells mean the enrichment didn't return a value — you want to skip those fields rather than blanking them.
For each row in my 'Field Updates' sheet, update the Enginemailer subscriber in column A. Only update 'account_tier' if column B is not blank, and only update 'region' if column C is not blank. Write the result to column D.
Normalize casing, skip blanks, update all five fields, and summarize errors in one operation
In my 'Field Updates' sheet: for each email in column A, update the matching Enginemailer subscriber. Title-case the values in columns B through F. Skip any field update where the cell is blank. Map columns B-F to 'account_tier', 'region', 'industry', 'employee_count', 'lifecycle_stage'. Write 'updated', 'not found', or the error message to column G. Write a count of successful updates to cell H1.
The count in H1 is the number that matters. The rest is the audit trail.
Try It
Get the 7-day free trial of SheetXAI and open the Google Sheet with your enrichment results — then ask it to push the updated field values to each subscriber and write back the status. For related tasks, see Bulk Import Contacts or the Enginemailer hub overview.