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Google Tasks · Google Sheets Guide

Reorganize Google Tasks Between Lists Using a Google Sheet

2026-05-14
5 min read

The Scenario

Three weeks into a project restructure, your operations manager handed you a spreadsheet mapping out where everything needs to move. Twenty task IDs in column A, new destination list names in column B, and parent task IDs in column C for anything that should become a subtask rather than a top-level item. The project structure in Google Tasks is a mess from the old organization, and this spreadsheet is the plan to fix it.

The bad version:

  • Open Google Tasks, find the first task by ID or name, drag it to the new list, decide whether it's a subtask, look up the parent task, nest it, go back, find the next task, repeat.
  • Lose track of which tasks were supposed to be subtasks versus top-level items halfway through.
  • Finish in an hour only to realize you moved four tasks to the wrong list because you misread a list name in the spreadsheet.

You have a clear mapping. The problem is that applying a 20-row spreadsheet to a UI designed for one-at-a-time management is a process that should take 10 seconds but takes an hour.

The Easy Way: One Prompt in SheetXAI

SheetXAI is an AI agent that lives inside your Google Sheet. It reads the mapping you've already built and uses its built-in Google Tasks integration to apply the restructure in one operation — moving tasks, assigning parents, and targeting the right lists from the data you have.

Open the SheetXAI sidebar and paste this prompt:

Move each Google Task in column A into the list named in column B, and if column C has a value make it a subtask of that parent task ID — process all 20 rows and write the result to column D

What You Get

  • Each task in column A moved to the list specified in column B.
  • Tasks with a value in column C nested as subtasks under the specified parent task ID.
  • Tasks with column C empty moved as top-level items in the destination list.
  • Column D updated with "moved" or an error description for each row so you know what landed correctly.

What If the Data Is Not Quite Ready

The list names in column B don't exactly match what's in Google Tasks

If column B says "Q3 Operations" but the actual list is named "Q3 Ops" or "Operations Q3," the move will fail.

Before moving tasks, fetch all my Google Task list names and for each value in column B find the closest matching list name — write the matched name to column E, then move each task in column A to its matched list and handle subtask nesting from column C

Some task IDs in column A are stale or no longer exist

If the restructure sheet was built from a data export from two weeks ago, some tasks may have been deleted or already moved.

Move each task in column A to the list in column B (with subtask nesting from column C) — for any task ID that no longer exists or can't be found, write 'not found' to column D and skip it rather than stopping

You need to verify the structure before committing the moves

If you want to see what the moves would look like before applying them, run a dry-run first.

For each row in this sheet: look up the Google Task with ID in column A and confirm it exists, check that the list in column B exists, check that the parent in column C exists if provided — write 'ready', 'task not found', 'list not found', or 'parent not found' to column D for each row, but do not move anything yet

Normalize list names, validate all IDs, and then apply the full restructure in one shot

For a complex restructure where accuracy matters more than speed, do the validation and the action in a single prompt.

First: trim whitespace from column B values, check that each task ID in column A and each parent ID in column C exists in Google Tasks, and check that each list in column B exists — write validation results to column E. Then, for every row where column E says 'ready': move the task to the list in column B and apply subtask nesting from column C. Write the final outcome to column F.

One prompt covers the check and the action so you're not running them separately and hoping the outputs line up.

Try It

Get the 7-day free trial of SheetXAI and open the restructure mapping spreadsheet your team built — then ask SheetXAI to apply the whole thing to Google Tasks at once. If you need to create new lists as part of the restructure, see bulk list creation, or review the full Google Tasks integration overview.

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