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In Microsoft 365, each data type is distinguished by specific attributes that uniquely identify it among other objects of the same type. During restore operations, a conflict arises when the object being restored already exists at the destination, as determined by its unique identity. For example, in SharePoint Online or OneDrive, a Site is uniquely identified by its Site URL. If a Site with the same Site URL exists at the restore destination, the system recognizes this as a conflict.
When configuring a restore job, you must specify how the system should handle these conflicting objects. The available conflict resolution options vary depending on the object type and service. Refer to the table below for the available conflict resolutions against each object type in Exchange Online, OneDrive, SharePoint Online, Project Online, Public Folders, Microsoft 365 Groups, and Teams.
NOTE
- If you select a file version to restore, the conflict occurs while a file with the same name exists in the destination.
- The data in the table below shows the supported state while HSM is disabled.
Exchange Online
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Mailbox | Object ID | Skip | Skip Append Overwrite | / |
| Folder | Folder Name | Skip Merge | Skip Append Overwrite | / |
| Mailbox Item | Item ID | / | Skip Append Overwrite | / |
OneDrive
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| OneDrive User | OneDrive URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Library | Library Title | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Folder | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Document | Document Name | / | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
SharePoint Online
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Site Collection | Site Collection URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| List/Library | List/Library Title | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Folder | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Item/Document | Item ID / Document Name | / | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| App | App ID | Skip Merge | / | Skip Overwrite |
Project Online
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Site Collection | Site Collection URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Project | Project Name and Project ID | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| List/Library | List/Library Title | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Folder | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Document | Document Name | / | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| App | App ID | Skip Merge | / | Skip Overwrite |
Public Folder
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Folder | Folder ID | Skip | Skip Overwrite | / |
| Mailbox Item | Item ID | / | Skip Overwrite | / |
Microsoft 365 Groups
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Group | Group Address | Skip Merge | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Group Team Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| List/Library | List/Library Title | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Folder in SharePoint | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Document | Document Name | / | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| App | App ID | Skip Merge | / | Skip Overwrite |
| Group Mailbox | Group Email Address | / | Skip Overwrite | / |
| Folder in Mailbox | Folder Name | / | Skip Overwrite | / |
| Mailbox Item | Item ID | / | Skip Overwrite | / |
| Plan | Plan ID and Plan Name | / | Skip Overwrite | / |
| Task | Restore the data to its original location: Task ID Restore the data to another location: Task Name | / | Skip Overwrite | / |
Teams
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Team | Team Address | Skip Merge | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Group Team Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| List/Library | List/Library Title | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Folder in SharePoint | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Document | Document Name | / | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| App | App ID | Skip Merge | / | Skip Overwrite |
| Group Mailbox | Group Email Address | / | Skip Overwrite | / |
| Folder in Mailbox | Folder Name | / | Skip Overwrite | / |
| Mailbox Item | Item ID | / | Skip Overwrite | / |
| Plan | Plan ID and Plan Name | / | Skip Overwrite | / |
| Task | Restore the data to its original location: Task ID Restore the data to another location: Task Name | / | Skip Overwrite | / |
| Public Channel | Channel ID and Channel Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Channel > Conversations | / | / | / | / |
| Channel > Files | File Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Channel > Files > Folder | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Private Channel | Channel ID and Channel Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Private Channel > Conversations | / | / | / | / |
| Private Channel > Files | File Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Private Channel > Files > Folder | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Meetings | Meeting ID | / | Skip Overwrite | / |
| Group Conversations | Conversation ID | / | Skip Overwrite | / |
Viva Engage
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| Viva Engage Community | Group Email Address | Skip Merge | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Viva Engage Messages | / | / | / | / |
| Viva Engage Files | File Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Site Collection | Site Collection URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| Site | Site URL | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | Skip Overwrite |
| List/Library | List/Library Title | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| App | App ID | Skip Merge | / | Skip Overwrite |
| Folder in SharePoint | Folder Name | Skip Merge Replace | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Document | Document Name | / | Skip Overwrite Overwrite by Last Modified Time Append an “_1” to the Item/Document | / |
| Plan | Plan ID and Plan Name | / | Skip Overwrite | / |
| Task | Restore the data to its original location: Task ID Restore the data to another location: Task Name | / | Skip Overwrite | / |
Microsoft Teams Chat
| Object Type | Conflict Identity | Container Level Conflict Resolution | Content Level Conflict Resolution | App Conflict Resolution |
|---|---|---|---|---|
| User | / | / | / | / |
| Chat | / | / | / | / |
| Chat Message | / | / | / | / |
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