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Hello.
Have you cleared all the prerequisites when targeting S3 with DMS?
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Target.S3.html#CHAP_Target.S3.Prerequisites
Although it may not be very relevant, try creating an S3 VPC endpoint in the VPC where the DMS replication instance is located and see if it improves.
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_VPC_Endpoints.html
0
DMS expects the username to be dms_user whilst connecting to SQL server. Once this new user is created, the task gets completed successfully. The below documentation has further details related to it.
answered 2 years ago
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- AWS OFFICIALUpdated 6 months ago

Hey, thanks for the response. Those pre-reqs are in place, I managed to fix the issue. DMS expects the username to be dms_user whilst connecting to SQL server. Once this new user is created, the task completed successfully. The below documentation has further details related to it.
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Source.SQLServer.html#CHAP_Source.SQLServer.Permissions