Lesson Learned #432: Resolving DataSync Failures in Azure SQL Database Caused by Custom Triggers
Azure SQL Database provides a robust DataSync service to synchronize data across multiple Azure SQL databases or between on-premises SQL Server and Azure SQL databases. While generally reliable, some exceptions can disrupt the smooth flow of data synchronization. One such error occurs when custom-defined triggers interfere with DataSync's internal processes, resulting in a failure like the one described below: Sync failed with the exception 'An unexpected error occurred when applying batch file sync_XXX\\XX-XXX-XYZ-afb1-XXXX.batch. See the inner exception for more details.Inner exception: Index was outside the bounds of the array. For more information, provide tracing ID ‘NNNN-3414-XYZ-ZZZ-NNNNNNNX’ to customer support.'
