AWS Elemental MediaTailor
User Guide

Document History for AWS Elemental MediaTailor

The following table describes important changes to this documentation.

Change Description Date

New security chapter

Added a security chapter to enhance and standardize coverage.

May 23, 2019

DASH single-period manifests

Added support for single-period DASH manifests from the origin server, with multi-period manifest output.

April 4, 2019

Support for SCTE-35 UPIDs in the ADS URL

Added support for including a unique program ID (UPID) in the ad decision server (ADS) URL. This allows the ADS to provide program-level ad targeting within a live linear stream.

March 28, 2019

Client-side reporting supports companion ads

For client-side reporting, the AWS Elemental MediaTailor tracking URL response now includes companion ad metadata.

March 28, 2019

HLS ad marker documentation

Added a section that describes supported HLS ad markers.

March 1, 2019

Tagging support

Added support for tagging of configuration resources in AWS Elemental MediaTailor. Tagging allows you to identify and organize your AWS resources and control access to them and to track your AWS costs.

February 14, 2019

Added AWS CloudTrail logging information

Added topic about using CloudTrail to log actions in the AWS Elemental MediaTailor API.

February 11, 2019

Added section on playback errors

Added information about the errors that might be returned by MediaTailor during playback, in response to requests from a player or a content delivery network (CDN).

February 4, 2019

DASH base64-encoded binary

Added support for providing splicing information in manifests in base64-encoded binary, inside <scte35:Signal> <scte35:Binary> markers.

January 4, 2019

DASH time signal

Added support for providing splicing information in manifests inside <scte35:TimeSignal> markers.

December 5, 2018

DASH location support

Added support for the MPEG-DASH <Location> tag.

December 4, 2018

DASH support

Added support for MPEG-DASH manifests.

November 14, 2018

Updated limits tables

Updated limits for configurations and manifest size.

October 13, 2018

New and updated metrics

Added metrics for ad decision server (ADS) and origin timeouts, and updated the ADS and origin error definitions to include timed-out responses.

October 13, 2018

Better documentation coverage for server-side and client-side ad insertion use cases

Expanded description and examples to cover the use of dynamic ad variables for server-side ad insertion and for client-side ad insertion.

October 1, 2018

New Regions

Added support for the PDX and FRA Regions.

July 18, 2018


Added information about VAST and VPAID.

March 16, 2018


Added information about available CloudWatch metrics, namespaces, and dimensions.

March 16, 2018

New Regions

Added support for the Asia Pacific (Singapore), Asia Pacific (Sydney), and Asia Pacific (Tokyo) Regions.

February 8, 2018

Default Amazon CloudFront distribution paths

Added the list of paths for the Amazon CloudFront distribution where AWS Elemental MediaTailor stores ads.

February 6, 2018

IAM policy information

Added IAM policy information specific to AWS Elemental MediaTailor. Added instructions for creating non-admin roles with limited permissions.

January 3, 2018

First release

First release of this documentation.

November 27, 2017


  • The AWS Media Services are not designed or intended for use with applications or in situations requiring fail‐safe performance, such as life safety operations, navigation or communication systems, air traffic control, or life support machines in which the unavailability, interruption or failure of the services could lead to death, personal injury, property damage or environmental damage.