B&B Electric’s Dropbox to Microsoft 365 Migration with CloudFuze Before Renewal
B&B Electric Inc. was paying for two platforms, Dropbox and Microsoft 365. Their next Dropbox renewal date provided the company with a fixed timeframe to finish migration to Microsoft 365. CloudFuze migrated around 3.5 TB of data for 60 users. The data was moved to OneDrive and SharePoint Online between March 11 and March 30, 2026.
B&B Electric’s Dropbox to OneDrive and SharePoint Online migration before their renewal date was completed in less than a month. This customer success story explains what the project involved and how CloudFuze met the deadline.
Key Takeaways
Who Is B&B Electric, and Why Did the Dropbox Renewal Matter?
B&B Electric is an electrical contractor with over 40 years of industry experience. The company was founded by two owners with just one employee and one vehicle.
Today, B&B Electric has over 400 electricians spread across Wisconsin and Minnesota. It is part of the EMCOR Group. The company’s projects span mining, healthcare, public works, commercial, industrial, and education.
B&B Electric’s next Dropbox renewal date gave it a firm timeline for migration. Dropbox cancellation begins at the end of the existing billing period. In case the company missed this date, a new billing period would commence.
For the company, this new period would have meant one more year of pay for two services. B&B Electric already used Microsoft 365 across the business. The Dropbox subscription only added a second bill for the same purpose.
How Long Did B&B Electric’s Dropbox to Microsoft 365 Migration Take?
CloudFuze completed the full migration between March 11 and March 30. It covered around 3.5 TB of data and up to 60 users. CloudFuze moved the company’s data from Dropbox to SharePoint Online and OneDrive in Microsoft 365. The migration finished within a one-month service term.
Here is what B&B Electric’s migration scope looked like.
| Factor | B&B Electric |
|---|---|
| Source | Dropbox |
| Destination | OneDrive and SharePoint Online |
| Data volume | Roughly 3.5 TB |
| Users | Up to 60 |
| Delivery window | March 11 to March 30 |
| Service term | One month |
| Migration type | One-time pass plus delta migration |
| Delivery model | Fully managed, dedicated project manager |
How long a Dropbox to Microsoft 365 migration takes for an enterprise depends on their own environment. It’s critical to measure it first. A pre-migration analysis gives you volume, user count, and a destination plan.
Want a timeline measured against your renewal date?
Why B&B Electric Left Dropbox for Microsoft 365
Four key factors led B&B Electric to leave Dropbox for Microsoft 365.
Cutting Duplicate Software Costs
The company already paid for Microsoft 365 and Dropbox. They could easily avoid the duplicate Dropbox expense by migrating.
Using Familiar Tools
B&B Electric’s employees already used several Microsoft apps in their daily work. Keeping files on another platform added more unnecessary steps to routine work.
Making IT Management Easier
A single platform makes it easier to manage accounts and permissions. This saves a lot of time for IT teams.
Meeting the Renewal Deadline
The Dropbox renewal date gave the company a definite timeline for migration. It was essential to finish migration before renewal to avoid another billing term.
Four Challenges the Migration Had to Solve
B&B Electric’s migration faced four challenges.
Meeting a Strict Deadline
Their service term was only a month long. For the company, the sooner the migration finished, the better. There was no time for another attempt.
Adjusting to Changing Requirements
During discovery, user counts and data estimates had to be revised. The quote and the migration plan had to follow these changes.
Moving Data to Two Destinations
Certain files needed migration to SharePoint Online. Others belonged in separate OneDrive accounts. Getting this wrong by incorrect mapping could scatter shared folders across personal storage.
Resolving Issues After the Final Delta Migration
The final delta migration identified files and issues that needed attention. For example, it surfaced files that did not migrate correctly during the first migration. It was critical for the team to examine and address these issues before sign-off.
Where B&B Electric’s Content Landed: OneDrive or SharePoint?
Shared folders migrated to SharePoint Online. Personal files migrated to individual OneDrive accounts. The migration team agreed on these destinations before going ahead with the transfer.
This separation is crucial for migration’s success. If a shared folder moves into an employee’s OneDrive, others cannot access it. The files are still present. But the team members who actually need them may struggle to find them.
| Content type | Destination | Reason |
|---|---|---|
| Shared and team folders | SharePoint Online | Built for shared access across a group |
| Personal and individual files | OneDrive | Belongs to one user, not a team |
Planning file destinations before migration prevents costly fixes later. Our guide on migrating Dropbox to Office 365 with content segregation explains the planning steps in detail.
How CloudFuze Ran the Dropbox to Microsoft 365 Migration Before Renewal
The CloudFuze migration team understood that a fixed, short deadline left no room for errors. Thus, it handled the project as a fully managed migration service. A dedicated project manager oversaw the entire process, from the first call to the handover.
Reviewing the Environment Before Migration
Before transferring any data, CloudFuze first deeply analyzed B&B Electric’s Dropbox environment. This helped determine the right destinations and the sequence of migration batches.
Updating the Scope as Details Changed
During discovery, data estimates changed. CloudFuze updated the project scope and quote, so it showed the latest data.
Moving Data First, Then Syncing Changes
The first migration sent the bulk of the data to the destination platform. The changes made since then were moved with delta migrations. This ensured that employees kept working in Dropbox while the migration was happening.
Handling Naming and Path Restrictions Automatically
Microsoft does not support certain characters in file and folder names. These include ” * : < > ? / \ | as well as leading or trailing spaces. Besides, it also restricts cloud file paths that exceed 400 characters.
CloudFuze replaced unsupported characters with supported ones like hyphens and underscores. It adjusted long file paths so they met the 400-character limit. This prevented any of these issues from causing the migration to fail.
Retrying Conflicts and Resolving Remaining Issues
CloudFuze retried conflicts automatically three times. The items that were still unresolved were then brought to the customer. CloudFuze’s migration team worked with B&B Electric to reconcile the remaining data.
CloudFuze has 12 years of experience in enterprise cloud projects. Its data centers hold SOC 2 Type 2 certification. CloudFuze complies with ISO 27001 and GDPR requirements. It is a listed technology partner of Microsoft and Google Cloud.
Want to see how this works at larger volumes?
What B&B Electric Had at Handover
- Migrated roughly 3.5 TB for up to 60 users between March 11 and March 30.
- Preserved the Dropbox folder structure to keep files organized as teams expected.
- Moved shared folders to SharePoint Online and personal files to individual OneDrive accounts.
- Completed the initial migration and final delta migrations to capture the changes made during the project.
- Replaced unsupported characters in file names automatically.
- Adjusted long folder paths to meet the 400-character limit.
- Retried conflicts automatically up to three times per item.
- Reviewed remaining conflicts with the customer before handover.
- Provided post-migration support and helped reconcile remaining data.
Why a Managed Service Made More Sense Than Free Tools
Microsoft’s free migration tools can handle data transfers. But the stringent deadline made them less suitable for this project.
In most cases, free tools accumulate more work for your team. They must plan file destinations and closely monitor transfers. They also need to fix file names that Microsoft 365, as a destination platform, doesn’t approve. Your team should also manage delta migrations while handling their regular duties.
B&B Electric only had a month to migrate data to two destinations in Microsoft 365. During migration planning, the project scope was revised. A failed attempt could have been extremely costly.
If the deadline isn’t very strict, free tools can work. But in case of limited time, it’s always a good option to hire migration experts. This immensely reduces the risk of delays and migration failures.
Have a renewal date you need to beat?
Start Before Your Renewal Date Sets the Timeline
Renewal dates don’t change. So, your migration plan should work around them.
A pre-migration assessment tells you exactly what the project involves. It identifies the total data volume, number of users, and correct destinations. It also establishes a realistic timeline based on your renewal date.
Read the full B&B Electric case study to learn more about this migration.
Frequently Asked Questions
1. How long does it take to migrate 3 TB from Dropbox to Microsoft 365?
CloudFuze moved roughly 3.5 TB for B&B Electric between March 11 and March 30 for B&B Electric. That is under three weeks for up to 60 users across two destinations. Your timeline depends on volume, user count, destinations, and how much changes mid-project.
2. Can a Dropbox migration finish before the subscription renews?
Yes, when you start with a scope review before the actual transfer. You need to measure the volume and decide the destination split. Then, prepare a delta migration plan for changes. B&B Electric finished inside a one-month service term.
3. What happens to file names Microsoft 365 does not accept?
They are rejected if not corrected automatically during transfer. Microsoft rejects ” * : < > ? / \ | and leading or trailing spaces. It also restricts the full cloud file path to 400 characters. CloudFuze replaces unsupported characters and adjusts long paths automatically, so the migration does not fail.
4. Which companies has CloudFuze migrated from Dropbox to Microsoft 365?
B&B Electric, an EMCOR Group company, moved roughly 3.5 TB for up to 60 users. Estée Lauder moved over 100 TB for more than 1,000 users. That content went into SharePoint Online and OneDrive. Both projects ran as fully managed migrations.
About the Author: Preksha Joshi
