When an Atlassian migration fails or reports incomplete, start with the migration assistant’s pre-migration checks, then use the exact error log and post-migration report to identify what did not transfer. A Jira migration marked incomplete may have only one failed entity; Confluence permission, export-resource, and app-migration errors need different remedies. Fix the documented cause before rerunning, and verify the result afterward.
Start with checks, logs, and the migration report
- Run the pre-migration checks. Expand every warning and error and follow its remediation. Atlassian describes Jira pre-migration checks as mandatory. Confluence checks cover system readiness, assistant version, users and groups, spaces, and apps. An error blocks the migration until corrected; a warning flags a risk to assess rather than an automatic failure. See Atlassian’s Jira Cloud Migration Assistant troubleshooting guide and Confluence pre-migration checks.
- Open the error log for the affected plan. In Jira, open the plan’s Review your migration screen, choose Logs and reports, and download the error log. In Confluence, examine the migration error and relevant application or support logs. Record the exact message and affected entity; similar-looking failures can have different causes.
- Compare the log with the post-migration report. For Jira, the report shows what transferred and what did not. An incomplete status does not by itself mean all project data was lost. Identify the failed entity before deciding whether to correct a source issue, retry, or escalate.
- Correct the cause, then retry or verify. Depending on the error, this may mean correcting data or permissions, freeing temporary export space, resolving server resource limits, or involving an app vendor. Keep the logs and check the report after the next run.
Fix common Jira migration errors
Invalid or missing user references
A permission scheme may refer to a user who is absent from the migrated accounts, causing import errors. Correct the invalid reference and rerun through the Jira Cloud Migration Assistant. Atlassian’s troubleshooting guide describes this failure class.
Required fields with null values or unsupported source data
Highly customized Jira Server data can contain values Cloud does not support. Atlassian gives a required field with a null value as an example. Clean up the source data before retrying. In some cases, the assistant’s generated ZIP includes a CSV of remediable errors; correct those entries and upload the file without changing the source instance.
Incomplete projects, changed keys, and linked work
If a project or entity failed, use the error log and post-migration report to isolate it rather than assuming the whole project is missing. If project keys change, update associated configuration, filters, and boards before retrying. Links to projects in a later migration batch may remain unavailable until that batch migrates; review board JQL afterward as well. See Jira migration error guidance.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Resolve common Confluence errors
“Failed to add user to groups”
This error can mean the migration user lacks organization-admin and product-admin permissions on the Cloud destination. Confirm the required destination permissions, then retry. Atlassian lists this issue in its Confluence Cloud Migration Assistant error guide.
HTTP 401 during Cloud checks
In a Confluence Data Center migration, Atlassian associates a 401 response with an unauthorized Cloud user or stale or incorrect session. Check that the appropriate site administrator is logged in, clear browser data, and relink Server to Cloud as directed by the Confluence Data Center troubleshooting article, updated September 25, 2025.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
“Failed to execute export for query”
Atlassian identifies three possible causes: too many open files, insufficient temporary space under the Confluence export folder, or an out-of-memory error. Check the application logs to distinguish them. If export space is low, free space and retry with smaller batches; for memory errors, follow Atlassian’s linked memory guidance in its Confluence error guide.
Duplicate sidebar-link key
For the specific import conflict AO_187CCC_SIDEBAR_LINK_pkey, Atlassian says to contact support so the necessary Cloud database changes can be made. Do not attempt an unapproved database workaround.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Tell a platform problem from an app migration problem
Marketplace app data can migrate separately from core Jira or Confluence data. Inspect the app’s own migration progress log: warnings such as a server exception or failure to notify the Cloud app that migration started can stall or time out the app transfer. Share the migration status, warning details, Cloud-site URL, and complete progress logs with the app’s Marketplace Partner. If the partner needs Atlassian’s help, escalate to Atlassian Support. See Atlassian’s Marketplace app migration error guidance.
Prepare safely before another run
- Test Confluence migration on a test or staging site before the final run. Atlassian strongly recommends a trial migration.
- For Jira, use the same assistant version in the production migration as in the test migration, update the assistant, and complete the preparation steps. The source migration operator needs system-administrator privileges; the destination requires organization-administrator privileges. Confluence instructions likewise call for a source system admin and destination organization admin. See Jira migration preparation guidance and Confluence migration instructions.
- After making Server changes for a Jira migration, wait at least 10 minutes before migrating so the data can update, as Atlassian advises in its Jira troubleshooting guidance.
- Back up before database changes. Atlassian recommends testing alter, insert, update, or delete SQL changes on staging where possible; see its Jira troubleshooting guide.
Know when to escalate
Contact Atlassian Support
Use Atlassian Support for unresolved assistant or platform problems. For Confluence cases, provide relevant application logs and a support ZIP when requested. For the documented duplicate-key conflict, support must make the required Cloud database changes.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Bring in a Solution Partner for complex migrations
Atlassian recommends considering a Solution Partner when a migration is complex or internal capacity is limited—for example, with complex merges, security or compliance requirements, a condensed timeline, or needs such as user acceptance testing, server upgrades, training, planning, project management, and execution beyond support scope. Its stated recommendation criteria also include more than 1,000 users or five or more business-critical apps; these are Atlassian’s guidance, not universal thresholds. Partner services can include cloud assessments, custom app and data migration, cloud optimization, user management and governance, and end-to-end migration support. See Atlassian’s guidance on engaging a Solution Partner and its Solution Partner directory.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →
