Google Workspace Data Migration Stuck at 0 – Solved

Jamie Kaler ~ April 7, 2025 ~ 6 Minutes Reading

Users often encounter issues Google Workspace Data Migration Stuck at 0. This problem halts programs and can disrupt business continuity, especially during time-sensitive migrations. In this guide, we will explore the causes of Google Workspace Migration failure at zero, how to troubleshoot it, and tips to ensure a successful and seamless data migration.

Google Workspace was formerly known as G Suite. It offers inbuilt data migration services DMS that allows to transfer emails, contacts and calendars from various services like Microsoft Exchange, Microsoft 365, or other IMAP Servers into Google Workspace accounts. It’s an important tool for organizations when shifting their infrastructure to the cloud.

What Does “Google Workspace Data Migration Stuck at 0” Mean?

When you start migration using Google Workspace Data Migration Service the status remains at 0% for a long period. It typically indicates that the process has not even begun to transfer data from source to the destination account. This issue mainly referred to as Google Data Migration Stuck at 99 means the system is unable to establish proper connectivity with the source server, is waiting on credentials or permissions validations, or has encountered Google Workspace Data Migration Error 18015.

It shows gradual progress, and migration freezes at initial steps, often without showing any error message For admins, this can be time consuming and time taking to fix during bulk data migration. Understanding why migration stocks at 99% is necessary to fix the error and can easily transfer user data to Google Workspace.

Causes of Google Workspace Data Migration Stuck at 0

  • Poor or unstable connectivity can prevent the migration from establishing connection with the source server, causing the migration to be stuck at 0%.
  • If admin account users for the migration lack the necessary permissions or have incorrect login details, the system mail fails to transfer data.
  • Errors in configurations, such as selecting the wrong source type, incorrect server address, or faulty port settings – can block from starting.
  • Firewalls, antivirus or network security policies might block necessary ports or APIS required for migration, resulting in a frozen progress bar.
  • If you’re migrating a large volume of data or multiple accounts simultaneously, Google API rate limit may throttle or temporarily delay the process.

Troubleshooting Google Workspace Data Migration Stuck at 0

  • Verify mail server address, port numbers, and authentication methods like SSL or TLS as required.
  • Review the logs in Admin Console for any error messages or clues. Logs often provide details on what causes migration to stall, such as authentication failure or access details.
  • Sometimes, deleting stuck migrations or creating a new migration can fix these issues. This allows the system to fresh start to begin the transfer.
  • Firewall settings, antivirus software, or email filtering might block the data flow. Temporary disabling or adjusting can allow the migration to proceed.
  • Instead of migrating all users accounts, try migrating individual user mailboxes at once to check issues globally or in any specific accounts.
  • If all fails and the migration remains stuck, then contact Google Workspace support. They can access backend issues or guide you according to these.

Tips to Avoid Google Data Migration Stuck at 0

  • Verify account permissions, server settings and stable connectivity to minimize the chances of error.
  • Always use an admin account with all necessary permissions to correctly migrate from Exchange or Office 365. Assign all required permissions in advance to prevent Google Data Migration Stuck at 99 error.
  • Run a trial migration with 1-2 users mailboxes to ensure your settings are correct and the connection is working before initializing a full-scale migration.
  • To reduce the risk of throttling or API limitations, schedule migration during non-business hours when server load is minimal.
  • Stay on Google Admin Console logs to check early warnings. Ensure that essential ports and IP ranges used by Google Workspace Data Migration Service are allowed through your firewall and network policies.
  • Select the correct source type(Exchange, IMAP,PST) when configuring the migration. As using incorrect details can hinder the process.
  • Use the latest versions of your browser and check all system updates are applied. Outdated environments may impact functionality.

Quick Steps to Fix Google Workspace Data Migration Stuck at 0

If you want to fix this error quickly without following manual procedure then we recommend you to opt Jagware Email Backup Wizard as it allows you to export selectively or whole Gmail, Google Workspace, Microsoft 365, Yahoo and all IMAP Supported platforms to Google Workspace mailbox data. This software has been also capable of migrating individual or batch IMAP accounts at once with maintained results.

  1. Download and open automated software on your system.open Google Workspace Migration Stuck at 0 fixer
  2. Enter “IMAP email address and password” to authorize IMAP account.Enter IMAP credentials
  3. Now, “Select mailbox folders” as you want to export.Select folders
  4. Choose “Google Workspace” in the list of Saving options.Choose Google Workspace
  5. Fill “Google Workspace login credentials”.Enter Google Workspace credentials
  6. Press Backup to fix “Google Workspace Data Migration Stuck at 0”.Start fix Google data migration stuck at 99

Remarkable Qualities of Automated Wizard

  • This software offers fully maintained attributes and hassle-free Google Workspace data migration.
  • It offers a simple initiative interface to easily perform by any corporate or individual level without requiring high technical expertise.
  • You can also migrate Microsoft 365, Exchange and Convert Gmail to Google Workspace with maintained attributes.
  • With this wizard, you can also use filter features such as export only sent folder, exclude email body and attachments, date range, exclude folder and many more.
  • This wizard also comes with lots of saving options to directly select and export files in selected

Common Queries

Why does data migration take so long?

Data Migration can be a slow or time taking process due to larger mailbox size, limited bandwidth, throttling by source servers or server timeouts. Background sync delays and processing attachments also impact the overall speed of migration in Google Workspace.


What is the migration limit for Google Workspace?

Google Workspace limits daily data migration per user to approximately 2.5 GB for Gmail. For IMAP Exchange, or PST imports server throttling or API quotas may apply. Admins can migrate up to 100 users at once using Google Workspace Data Migration Services.


What is DMS service?

Data Migration Service(DMS) is a free migration tool by Google Workspace that allows users to migrate emails, contacts and calendars from platforms like Exchange, Microsoft 365 or IMAP into Gmail and Google services with minimal setup.

Ending Remarks

We gave a drafted solution in this post to fix Google Workspace Data Migration stuck at 0, and it’s a headache for the users. So, in this guide, we have shared an overview of this error, its causes, prevention, and also described the way to troubleshoot it. In addition, we have also shared its alternative solution, and it’s completely suggested by IT experts as it offers fully maintained accuracy and is especially known for its faster performance.