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E_SYNCENGINE_FILE_SIZE_OVER_LIMIT
E_SYNCENGINE_FILE_SIZE_OVER_LIMIT belongs to Windows cloud-file and sync-engine infrastructure. It marks the file exceeds the sync service or client’s supported per-file size. The useful starting point is the exact API, object and state transition that returned 0x8802B001, because a shell or application message can hide that boundary.
Where this result is raised
For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, a Windows sync engine coordinates local NTFS objects, provider metadata, remote identifiers, quota and naming rules, placeholder hydration, network authentication, and asynchronous upload or download state. When E_SYNCENGINE_FILE_SIZE_OVER_LIMIT is returned, the same Explorer action can cross several of those boundaries, so diagnosis must retain the first failing stage rather than treating every code as a generic connectivity problem.
When E_SYNCENGINE_FILE_SIZE_OVER_LIMIT is returned, this is a deterministic object-limit result, not remaining account capacity. During a E_SYNCENGINE_FILE_SIZE_OVER_LIMIT investigation, the limit can be evaluated before upload and may differ by service generation or account capability.
For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, the first owner to inspect is the local sync root, placeholder state, file-system operation, provider request, network exchange, account policy, or remote storage operation that produced the HRESULT.
Evidence worth collecting
- Logical file size. For
E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, this pins the event to an object or resource generation within the Windows cloud-file and sync-engine infrastructure boundary. - Service limit and client version. For
E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, this places the event on the lifecycle or transaction timeline within the Windows cloud-file and sync-engine infrastructure boundary. - Sparse/compressed allocation versus logical length. For
E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, this separates caller input from environment and service state within the Windows cloud-file and sync-engine infrastructure boundary. - Upload session creation result. For
E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, this creates a stable comparison across retries or another machine within the Windows cloud-file and sync-engine infrastructure boundary.
A controlled diagnostic sequence
During a E_SYNCENGINE_FILE_SIZE_OVER_LIMIT investigation, reduce the case while preserving the condition described by the HRESULT.
- First: Compare logical length with the published limit.
- Next: Test a file just below the boundary.
- Then: Upgrade only if the newer contract supports the size.
- Finally: Offer splitting or another storage path where semantically valid.
How to interpret comparison tests
| Control | Interpretation for E_SYNCENGINE_FILE_SIZE_OVER_LIMIT | Hold constant |
|---|---|---|
| Same input, fresh object or connection | For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, if the result disappears, retained lifecycle or ownership state is implicated. | While diagnosing E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, keep the original data, account, device, or timeline parameters unchanged. |
| Same object, reduced operation | For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, if the result follows one specific transition, statement, file, or ceremony step, the failure is localized. | While diagnosing E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, remove only unrelated work and keep the first failing boundary visible. |
| Same stable item ID, second supported path | For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, a change separates local file-system/provider state from remote service state. | While diagnosing E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, keep account, remote version and client build fixed. |
What this code does not justify
For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, FILE_SIZE_EXCEEDS_REMAINING_QUOTA is account capacity; FILE_SIZE_OVER_LIMIT applies even with ample quota.
For E_SYNCENGINE_FILE_SIZE_OVER_LIMIT, do not confuse compressed on-disk size with logical upload size.
Verification after correction
Treat E_SYNCENGINE_FILE_SIZE_OVER_LIMIT as corrected only when boundary tests below and above the documented limit produce deterministic outcomes; retain the original negative case so fallback cannot be mistaken for repair.
Technical references
The references below define the API family or storage/protocol behavior used to interpret E_SYNCENGINE_FILE_SIZE_OVER_LIMIT.
- For
E_SYNCENGINE_FILE_SIZE_OVER_LIMIT: Microsoft: Build a Cloud Files sync engine - Microsoft: Cloud Filter API reference
- Microsoft: Determine cloud placeholder state
- Microsoft: Restrictions and limitations in OneDrive and SharePoint
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