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Applies to: 
SQL Server
Azure SQL Managed Instance
Message Details
| Attribute | Value |
|---|---|
| Product Name | SQL Server |
| Event ID | -2147199371 |
| Event Source | MSSQLServer |
| Symbolic Name | |
| Message Text | The request that was sent to the IIS server was greater than 4 GB, which is not supported. Try using a smaller value for the 'UploadGenerationsPerBatch' parameter. |
Explanation
When you are using Web synchronization, the size of the uploaded message must not be larger than 4 GB.
User Action
Decrease the value for the UploadGenerationsPerBatch parameter.