Timestream IAM Policy

I would like to create an IAM policy bound to an IAM role that allows Lambda permissions to the WriteRecords API scoped to an individual table. I am using the IAM policy below from the Timestream documentation but receive an 'access denied' for the WriteRecords API unless the resource is scoped to "*" which is not what I require. I have copied the ARN from the Timestream console to ensure there are no character errors, but this seems to make no difference. I would appreciate any assistance so that I can correctly scope the security of my solution.

My current policy follows this example:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "timestream:WriteRecords"
            ],
            "Resource": [
                "arn:aws:timestream:us-east-1:<account_id>:database/sampleDB/table/DevOps"
            ],
            "Effect": "Allow"
        },
        {
            "Action": [
                "timestream:DescribeEndpoints"
            ],
            "Resource": "*",
            "Effect": "Allow"
        }
    ]
}

https://docs.aws.amazon.com/timestream/latest/developerguide/security_iam_id-based-policy-examples.html