Bittitan 장애 기록

1. 2026년 9월 3일 PM 1:58 UTCinvestigating

   MigrationWiz 문서 마이그레이션 오류 8 월 19, 2026에 시스템 업그레이드를 통해 전체 문서 마이그레이션 속도와 처리량을 개선했습니다. 우리는 고객의 작은 하위 세트에 영향을 미치는 문제를 확인했습니다. 일부 사용자는 문서 마이그레이션 중 다음 오류 중 하나가 발생할 수 있습니다. "Collection은 수정되었습니다. 열악한 가동은 실행되지 않을지도 모릅니다." "오프셋과 길이가 경계 밖으로 있었다" "파일에서 모든 바이트를 읽지 마십시오." 이 오류는 데이터 손실에 대해 표시되지 않습니다. 그들은 업데이트 된 코드에 의해 읽을 수없는 업그레이드 이전에 생성 된 로그를 일으키는 8 월 19 릴리스에 포함 된 DLL 업그레이드의 결과입니다. 우리는 문제점의 인식이고 더 넓은 해결책에 적극적으로 일합니다. 자주 묻는 질문 위의 오류 중 하나를 경험하는 경우, 재설정 항목을 수행하고 마이그레이션 패스를 다시합니다. 이것은 대부분의 경우의 문제점을 해결합니다. 지침은 MigrationWiz의 항목을 재설정하는 방법을 참조하십시오. https://help.bittitan.com/hc/en-us/articles/360042167494-MigrationWiz-Statistics-Statistics-Lookup#01H8HEMGW00PCG8XHWPM7QHWJD 리셋 아이템을 수행한 후 오류가 발생하면, 지원 사례를 열어주세요. 그래서 우리 팀은 더 넓은 고정 작업을하면서 직접 도움을 줄 수 있습니다. 우리는 우리의 조사가 계속적으로 업데이트됩니다.

공식 인시던트 업데이트를 자동 번역했습니다.

1. 2026년 7월 8일 PM 2:43 UTCinvestigating

   We are currently investigating an issue affecting OneDrive to OneDrive migrations that use Delegate Application authentication. Customers may encounter the error message "Your migration failed while checking destination credentials" when attempting to run migrations under this configuration. Our engineering team is actively investigating the root cause. No action is required on your part at this time. We will provide updates as our investigation progresses. We apologize for any inconvenience this may cause.

2. 2026년 7월 8일 PM 3:42 UTCinvestigating

   The root cause has been determined, and we are working to release a change to address this error shortly.

3. 2026년 7월 8일 PM 6:04 UTCresolved

   We have resolved the issue affecting OneDrive to OneDrive migrations using Delegate Application authentication. Customers who previously encountered the error message "Your migration failed while checking destination credentials" should now be able to run migrations successfully. If you continue to experience issues, please resubmit your migration. If problems persist, contact our support team. We apologize for any inconvenience this may have caused.

1. 2026년 2월 25일 PM 5:10 UTCinvestigating

   We are currently experiencing an issue with our online cart system for US Address Customers that may cause online orders to fail at checkout. Our team is actively investigating and working to resolve the problem as quickly as possible.

2. 2026년 2월 25일 PM 9:31 UTCresolved

   This incident is resolved.

1. 2026년 2월 23일 PM 10:11 UTCinvestigating

   We are currently experiencing an issue with our online cart system that may cause online orders to fail at checkout. Our team is actively investigating and working to resolve the problem as quickly as possible.

2. 2026년 2월 24일 PM 1:40 UTCresolved

   This incident has been resolved.

1. 2026년 2월 13일 PM 9:09 UTCidentified

   We have upgraded our Microsoft 365 authentication to Microsoft’s modern identity platform (v2) to improve security, reliability, and configuration experience. Known Issues: OneDrive Migrations (Delegate App) Customers using the Advanced Option ForceOneDriveNonGlobalAdminAuthExport=1 may experience credential failures. This option remains functional for SharePoint-to-SharePoint migrations. Recommendation: Remove this advanced option if possible and assign the SharePoint Administrator role to the Delegate account. This issue is under investigation. Tenant-to-Tenant Coexistence (Free/Busy Setup) Organizational relationship creation is currently failing for coexistence projects. Workaround: If free/busy is not required, create a standard mailbox project without coexistence. We are actively investigating and will provide updates as available.

2. 2026년 4월 29일 PM 1:27 UTCresolved

   This incident is now resolved.

1. 2026년 1월 8일 PM 8:33 UTCinvestigating

   Late next week, we will begin rolling out a security-enhancing update to our authorization flow. As part of this update, a small set of workloads require user action to continue running successfully. OneDrive, SharePoint and Teams Collaboration endpoints using delegated permissions will need the Tenant ID added in the Endpoint Settings page and PKCE consent completed. BYO app registrations will no longer function and must be switched to the BitTitan app. For full instructions and details, please refer to the guidance pages below: Required Actions & Resolution Guide [https://help.bittitan.com/hc/en-us/articles/43575952076827-Post-Deployment-Action-Items] Endpoint Settings Guide [https://help.bittitan.com/hc/en-us/articles/42628192621211-Endpoints-Setting-Guide] Consent Flow Guide [https://help.bittitan.com/hc/en-us/articles/42629928893851-Project-Summary] This notice is informational to ensure customers can complete the necessary updates.

2. 2026년 1월 14일 PM 4:30 UTCinvestigating

   The rollout is now expected to begin in the early part of the next week. No additional customer action is required beyond what was previously communicated. Private Chat History (PCH) will not be supported following this deployment as part of an ongoing re-implementation initiative. This work is intended to deliver an improved PCH experience, and PCH support will be reintroduced in a planned upcoming release.

3. 2026년 1월 20일 AM 5:35 UTCidentified

   We’ve upgraded our Microsoft 365 authentication experience to adopt Microsoft’s modern identity platform (v2), bringing stronger security, improved reliability, and a smoother configuration experience. What’s New • A modern PKCE-based authentication flow • Enhanced security with Azure Key Vault • Support for Microsoft’s latest identity platform (OAuth2) • Simple, UI-based permission selection • A guided in-UI consent experience for faster setup • Better compatibility with MFA-enabled tenants Action Required: Some customers may need to re-authenticate depending on their configuration. Required Actions & Resolution Guide [https://help.bittitan.com/hc/en-us/articles/43575952076827-Post-Deployment-Action-Items] Endpoint Settings Guide [https://help.bittitan.com/hc/en-us/articles/42628192621211-Endpoints-Setting-Guide] Project Summary - Consent Flow Guide [https://help.bittitan.com/hc/en-us/articles/42629928893851-Project-Summary]

4. 2026년 1월 21일 AM 1:44 UTCidentified

   Update: Resolved Issues, Known Issues & Workarounds Following the recent deployment, we have identified a small number of edge-case scenarios that may affect specific configurations. Most have simple workarounds, and our teams are actively addressing these issues. Resolved Issues : The following issues identified after deployment have been resolved: 1. SSO sign-in for SSO-enabled domains An issue that prevented users from logging in using SSO-enabled domains has been resolved. 2.SharePoint auto-discovery SharePoint site auto-discovery is now functioning as expected. We are actively working to address these scenarios and will provide updates as improvements are rolled out. If you experience issues outside of the cases described above, please contact Support for assistance. Known Issues : M365 Mailbox Issue: Scoping Some customers, who are using scoping functionality, are receiving the error: “Your migration failed while checking source credentials. Validate Token failed, please check EWS Application Permissions in Azure App.” This is currently under investigation. Recommendation: If possible, run your project without using scoping. The migration should complete successfully. Delegated Consent may return a 500 error : In some cases, attempting delegated consent may result in an internal server error. Workaround: Edit the project, save it without making changes, and then retry the consent flow. This resolves the issue in most cases. Consent may reference a previously configured tenant after changing endpoints : If a project’s source or destination endpoint is edited to point to a different tenant, the consent flow may still attempt to authorize the previously configured tenant. Workaround: If the project has not been started, create a new project using the updated tenant details. Consent banner may not appear for specific Google → Microsoft 365 (v3) document migration scenarios In certain edge cases, the consent-required banner may not display even when consent has not yet been provided. Recommendation: Review the Project Summary page and confirm that the consent status shows Authorized / Consented before starting the migration Consent banner may not refresh after editing project endpoints When editing a project and changing tenant or permission settings, the consent banner may not immediately reappear. Recommendation: Verify the consent status from the Project Summary page to ensure authorization is complete.

5. 2026년 1월 26일 PM 1:31 UTCidentified

   Update : Our teams continue to actively investigate and address the remaining items identified after deployment. Below are the latest updates and recommendations. M365 Mailbox Issue: Scoping Some customers using scoping functionality may encounter the error: “Your migration failed while checking source credentials. Validate Token failed, please check EWS Application Permissions in Azure App.” This remains under investigation. Recommendation: If possible, run your project without using scoping. The migration should complete successfully. If scoping is required and the above recommendation does not resolve the issue, ensure the source application includes the additional permission Exchange.ManageAsApp, and follow the steps outlined in below document. Document Link: [M365 Mailbox and Archive Migrations - Scoping Option for API Permissions](https://help.bittitan.com/hc/en-us/articles/27712633347099-M365-Mailbox-and-Archive-Migrations-Scoping-Option-for-API-Permissions#h_01J3NXCYXSE6V647FTHKRPR2KX) ----- Tenant-to-Tenant (T2T) Coexistence – Organizational Relationship Creation Tenant-to-Tenant coexistence projects are currently unable to complete the required cross-organizational free/busy setup process. Workaround: If free/busy availability between tenants is not required (typically only needed for large, long-running coexistence projects), we recommend creating a standard MigrationWiz mailbox project without coexistence while we work to resolve this issue. ----- We appreciate your patience and continued cooperation as we work to fully resolve these items. Additional updates will be shared as progress is made.

6. 2026년 1월 26일 PM 7:29 UTCidentified

   We are continuing to work on a fix for this issue

7. 2026년 1월 30일 AM 3:06 UTCidentified

   Update : We have upgraded our document migration authentication to modern authentication standards for SharePoint, Teams, and OneDrive. This enhancement strengthens security, improves reliability, and aligns our migration platform with current Microsoft 365 identity best practices. As part of this upgrade, legacy authentication mechanisms such as SharePoint IDCRL are no longer used. Customer Impact: Migration projects using delegated permissions (SharePoint, Teams, or OneDrive) will fail until permissions are re-consented. To continue, customers must re-consent the delegated permissions and then re-run the migration. For more information, please review our release note. We remain committed to continuously improving the security, reliability, and quality of our migration platform. If you have any questions, please feel free to reach out to our Support team.

8. 2026년 2월 13일 PM 9:08 UTCresolved

   With the release of our Microsoft modern identity platform (v2) upgrade, designed to enhance security, reliability, and the overall configuration experience, the majority of the initial issues identified following launch have now been resolved.

1. 2025년 12월 8일 PM 5:49 UTCmonitoring

   Migration jobs continue to process, but stopping them from the MigrationWiz UI is working inconsistently. Please contact Support if you require any migration lines to be stopped. Monitoring We have implemented a change and are seeing previously stalled migrations being processed. We are continuing to monitor the situation. Dec 07, 2025 - 10:12 PST Investigating Some customers may experience migrations stuck in the submitted state. We are aware of this issue and are working to resolve it. Dec 07, 2025 - 06:34 PST

2. 2025년 12월 9일 PM 10:03 UTCresolved

   This incident has been resolved.

1. 2025년 12월 8일 PM 5:47 UTCresolved

   Migration jobs continue to process, but stopping them from the MigrationWiz UI is working inconsistently. Please contact Support if you require any migration lines to be stopped

1. 2025년 12월 7일 PM 2:34 UTCinvestigating

   Some customers may experience migrations stuck in the submitted state. We are aware of this issue and are working to resolve it.

2. 2025년 12월 7일 PM 6:12 UTCmonitoring

   We have implemented a change and are seeing previously stalled migrations being processed. We are continuing to monitor the situation.

3. 2025년 12월 8일 PM 5:41 UTCresolved

   Migration jobs continue to process, but stopping them from the MigrationWiz UI is working inconsistently. Please contact Support if you require any migration lines to be stopped.

1. 2025년 12월 5일 PM 5:53 UTCmonitoring

   While the earlier issues have been resolved, customers who reset their password today will need to reset it again. For customers who did not update their password today, their previous password should now work.

2. 2025년 12월 8일 PM 5:42 UTCresolved

   This incident has been resolved.

1. 2025년 12월 5일 PM 2:26 UTCidentified

   MigrationWiz is currently experiencing a login issue. This is not a security incident. Users encountering the issue and receiving an “Access Denied” error should reset their password, which will restore access. We are investigating the cause and will provide an update soon.

2. 2025년 12월 5일 PM 3:23 UTCidentified

   MigrationWiz is currently experiencing a login issue. This is not a security incident. Users encountering the issue and receiving an “Access Denied” error should reset their password, which will restore access. Additionally, some users may experience issues with license application and other related functions. We are investigating the cause and will provide an update soon.

3. 2025년 12월 5일 PM 3:30 UTCidentified

   We are continuing to work on a fix for this issue.

4. 2025년 12월 5일 PM 4:33 UTCresolved

   All previously identified issues have been resolved.

1. 2025년 5월 28일 AM 12:15 UTCinvestigating

   We are currently investigating an issue affecting document migrations involving Google Drive, OneDrive, and SharePoint. Customers may experience intermittent authentication or connectivity errors when running migrations in these areas. As a temporary workaround, re-running the affected migration items typically resolves the issue. Our engineering team is actively working toward a permanent resolution. We appreciate your patience and will provide additional updates as soon as they become available.

2. 2025년 7월 2일 PM 12:03 UTCmonitoring

   We have implemented a series of platform enhancements to improve authentication reliability and connections for document migrations across OneDrive, SharePoint, and Google Drive. These updates have strengthened the way secure connections are established and managed, resulting in more consistent credential validation and reduced authentication-related disruptions. In addition to improved reliability, we have also made optimizations to enhance data transfer speed and throughput. These changes help migrations complete faster and more efficiently, particularly for large volumes of data or high-concurrency migration scenarios. As of our most recent deployment on June 30, we are are seeing very promising results We will continue to monitor the platform to ensure stable performance and a seamless migration experience for all users.

3. 2025년 7월 9일 PM 9:08 UTCresolved

   We have confirmed through comprehensive testing and positive customer feedback that our recent platform enhancements have successfully resolved the reported performance issues affecting authentication reliability and connection stability during document migrations. If you continue experiencing any challenges related to authentication or connection reliability while using MigrationWiz, please reach out directly to our Support team for assistance. Thank you for your patience as we worked to address this matter.

1. 2025년 4월 17일 PM 7:49 UTCinvestigating

   We are currently investigating migrations that are failing with the error: “The method or operation is not implemented.” in some Microsoft Teams and Sharepoint migrations. Our engineering team is actively working to identify the root cause and implement a resolution. We will update this status again no later than Tuesday, April 22.

2. 2025년 4월 21일 PM 3:14 UTCidentified

   We are aware that some migrations are failing with the error: “The method or operation is not implemented.” in some Microsoft Teams and SharePoint migrations. Our engineering team has identified a solution and is actively working on developing the fix. We are targeting deployment by Friday, May 2, and will continue to provide updates as progress is made.

3. 2025년 4월 30일 PM 6:24 UTCresolved

   We’re pleased to confirm that the issue causing migration failures with the error “The method or operation is not implemented” has been fully resolved. We apologize for any inconvenience this may have caused, and appreciate your patience as we worked to implement a fix

1. 2025년 4월 17일 PM 3:49 UTCidentified

   As of March 31, 2025, Microsoft has ended support for app-only authentication in the OneNote API. To maintain functionality, users must switch to delegated authentication. This is a Microsoft platform change, and MigrationWiz cannot mitigate this. Microsoft’s Official Announcement(https://learn.microsoft.com/en-us/graph/api/resources/onenote-api-overview?view=graph-rest-1.0) Using Delegated Permissions for OneDrive, SharePoint, and Teams migrations(https://help.bittitan.com/hc/en-us/articles/360038153373-Using-Delegated-Permissions-for-OneDrive-SharePoint-and-Teams-migrations)

2. 2025년 7월 2일 PM 12:05 UTCresolved

   As of March 31, 2025, Microsoft no longer supports app-only authentication for the OneNote API. If you need to migrate OneNote files, you must use delegated permissions in accordance with Microsoft’s changes. For more information, please review our Help Center article(https://help.bittitan.com/hc/en-us/articles/360038153373-Using-Delegated-Permissions-for-OneDrive-SharePoint-and-Teams-migrations). If you have any questions, feel free to contact our support team.

1. 2025년 3월 31일 PM 4:36 UTCmonitoring

   Microsoft has announced a change to Exchange Web Services (EWS) access in Exchange Online, effective at some point in April 2025 (Microsoft has not provided a specific date for this change). Once this change has been made, EWS access will only be allowed if both the organization-level and user-level EWSEnabled flags are set to True. To avoid any service disruptions, please ensure that EWS is enabled at both levels in your Microsoft 365 tenant. If either flag is set to False, EWS requests will be denied, and your migrations or services relying on EWS may fail. We strongly recommend reviewing your settings in advance. For more information, refer to Microsoft’s official announcement: 👉 [The way to control EWS usage in Exchange Online is changing.](https://techcommunity.microsoft.com/blog/exchange/the-way-to-control-ews-usage-in-exchange-online-is-changing/4383083) If you need assistance, please contact our support team.

2. 2025년 7월 2일 PM 12:06 UTCresolved

   This informational notice about Microsoft’s upcoming EWS access changes is now closed. No further updates are expected. Please ensure your organization has made the necessary adjustments to avoid service disruption

1. 2025년 2월 24일 PM 5:09 UTCinvestigating

   We are aware that some customers are receiving a credential verification error for OneDrive migrations. The team is working to resolve this issue.

2. 2025년 2월 27일 PM 3:11 UTCresolved

   This incident has been resolved.

1. 2025년 2월 3일 PM 8:52 UTCidentified

   You may see an informational message noting that your destination region is outside of Germany but this message is in error. In fact your migration will run in the correct location, based on your settings. You can safely ignore this message.

2. 2025년 2월 10일 PM 4:39 UTCresolved

   This incident has been resolved.

1. 2025년 1월 31일 PM 3:56 UTCidentified

   BitTitan is aware of a Certificate issue impacting all OneDrive, SharePoint, and Teams migrations. We are actively working to resolve the error.

2. 2025년 2월 1일 PM 10:09 UTCresolved

   The certificate issue for OneDrive, SharePoint and Teams migrations has been fixed. Please resubmit any failed migrations.

1. 2024년 11월 28일 PM 4:28 UTCidentified

   Due to an ongoing Microsoft service degradation, some O365 Mailbox Migrations may become stuck in the migrating phase. These mailboxes will appear not to be moving any data for an extended period. The workaround at this time is to Stop the migration and Resubmit the mailbox. In most cases, the new connection will bypass the issue, and the mailbox migration will be complete. In some cases, specific mailboxes may need to be Stopped and Resubmitted again.

2. 2024년 12월 4일 PM 3:59 UTCidentified

   We believe we have located the root cause of the stalling O365 mailbox migrations, which was amplified by the Microsoft Service Health issue last week. We are preparing a code fix, with a target release for today 12/4 in the late afternoon US time, which we anticipate will resolve the Stalling Mailbox issue.

3. 2024년 12월 6일 PM 7:22 UTCresolved

   After a successful MigrationWiz release on 12/4, we are no longer seeing issues with Stalling Mailboxes.

1. 2024년 7월 29일 PM 7:14 UTCidentified

   We are currently experiencing a known issue with the Google API due to recent changes made by Google. These changes are causing extreme throttling and slowness in our services. To mitigate this issue, we recommend using the Google (IMAP) connector for all Google Mail migrations until we can resolve the problem. We apologize for any inconvenience this may cause and appreciate your understanding as we work to address this issue.

2. 2024년 10월 22일 PM 12:57 UTCresolved

   We have collaborated with Google and implemented the necessary algorithms to mitigate the throttling issue. The Google API endpoint is now stable and can be used for all new migration projects. Please note, for mailboxes that have already been migrated using the Gmail IMAP connector, continue using that connector to avoid any potential data inconsistencies. The Google API endpoint should be used for new mailbox migrations only.