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Moosend · Google Sheets Guide

Bulk Create Custom Fields in Moosend From a Google Sheet

2026-05-14
5 min read

The Scenario

A marketing automation manager is setting up a new CRM integration. The integration requires 12 custom fields on the Moosend list — field names and types are already documented in a Google Sheet: name in column A, type in column B. The fields need to exist in Moosend before the CRM sync can go live. She's been in Moosend's field settings before, but building 12 fields by hand is not what she's supposed to be doing on a Thursday morning.

The bad version:

  • Open Moosend, go to list settings, find the custom fields section, click 'Add Custom Field', type the field name, select the type from a dropdown, save
  • Repeat 11 more times, switching back to the sheet to check the next field name each time
  • Finish and discover that field 9 was entered as 'Text' when the sheet says 'Number' — go back in and fix it, then verify all 12 again

Twelve fields. Twelve round-trips to the config sheet. At least one typo.

The Easy Way: One Prompt in SheetXAI

SheetXAI is an AI agent that lives inside your Google Sheet. It reads the field definition table directly, connects to Moosend through its built-in integration, and creates each custom field on your list — in one pass, with the name and type from your sheet.

Create a new custom field in Moosend mailing list ID abc123 for each row in the 'Custom Fields' sheet using the field name from column A and field type from column B

What You Get

  • 12 custom fields appear in the Moosend list, each with the correct name and type
  • The field definitions in your sheet serve as a permanent record of what was created
  • The run is idempotent — if you need to add more fields later, extend the table and re-run

What If the Data Is Not Quite Ready

Some field names have leading whitespace from copy-paste

Trim whitespace from field names in column A of the 'Custom Fields' sheet, then create a Moosend custom field for each row on list ID abc123 using the trimmed name from column A and type from column B — write 'CREATED' or 'ERROR' into column C

You need to create the same fields on two lists

For each row in the 'Custom Fields' sheet, create the Moosend custom field on both list ID abc123 and list ID xyz789 — using name from column A and type from column B — write 'CREATED ON BOTH', 'CREATED ON ONE', or 'ERROR' into column C

The type values need to be mapped to Moosend's expected format

For each row in the 'Custom Fields' sheet, map the type in column B — 'text' stays as 'Text', 'num' becomes 'Number', 'date' becomes 'Date' — then create the custom field on Moosend list ID abc123 using name from column A — write 'CREATED' or 'ERROR' into column C

Full field setup: validate, map types, create all fields, and confirm

In the 'Custom Fields' sheet — skip any row where column A is empty — map types in column B using: 'text' to 'Text', 'num' to 'Number', 'date' to 'Date' — create each field on Moosend list ID abc123 — write 'CREATED' or 'ERROR' into column C and write the total created count into cell E1

Running validation and type mapping together with the creation step means the fields arrive correctly typed the first time.

Try It

Get the 7-day free trial of SheetXAI and open a Google Sheet with your custom field definitions, then ask SheetXAI to build all the Moosend fields from your table. See also the Audit All Mailing Lists spoke or the full Moosend overview.

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