Digital Measurement SEI Ad Exposure

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This document outlines the required specification for facilitating Nielsen ONE advertising measurement, Digital Ad Ratings (DAR) measurement, Ad Effectiveness (MTA, Lift, etc.), and Activation products leveraging the Single Endpoint integration (SEI). Integration specifications for other Nielsen products (DCR, DTVR, etc.) via SEI are available separately.

The Single Endpoint integration contains two components:

1. Exposure File- the specifications of which are described in this document for the transmission to Nielsen with event level data shared via a Server-to-Server (S2S) method. This S2S file transfer supplies event data and related campaign, study, and user metadata required for facilitating measurement.
2. Audit Beacon- (implementation details available here: Digital Measurement Ads Audit Beacon) are HTTPS requests that emanate from the end-user device at a minimum of once per Session (uninterrupted user experience with gaps shorter than 30 minutes, or as mutually agreed upon). The Audit Ping provides Nielsen the ability to 1) validate traffic volume 2) provide a signal that Nielsen meters can detect for participating Nielsen panelists.

Ad Measurement Considerations

Nielsen ad campaign setup is required using the Campaign Management Interface (CMI) tool or Tagging API for each campaign where Nielsen reporting is expected - this applies to new or current Nielsen clients transitioning from standard client-device-fired pixel tags to Single Endpoint style.

Nielsen ad pixel tags should not directly fire for any exposures already included in the Exposure File after the testing period. Third-party Nielsen pixel tags should be intercepted, suppressed, and included in a server file transfer with all associated information.

The Audit Ping is required for facilitating MRC Accredited measurement.

S3 Bucket and Prefix Naming Convention

useast1-nlsn-w-dig-sei-<partnerid>-feeds-<env>/<filetype>/<split>/yyyy/mm/dd/hh/<object>

Name	Description
partnerid	Abbreviation provided by Nielsen for each provider or publisher
env	“test” or “prod”
filetype	exposure, dcr-exposure, dar-exposure, audio-exposure, etc., where: exposure is reserved for multi-product files <product>-exposure is for single product files, where <product> is [dar|dcr|dtvr|ctvc|audio]
split	a separate data split, can be by platform (ex.: ios, browser, android, ctv), by country (us, ca, jp, etc.), by publisher, by team, etc. or “all” (if data is provided in one split).
yyyy/mm/dd/hh	yyyy - year mm - month dd - date padded with 0 example 01, 02,..., 31 hh - hour padded with 0 example 00, 02,..., 23

S3 Bucket and Prefix Naming Convention

<partnerid>_<filetype>_<intid>_<appid>_<starttime>_<endtime>.[parquet|json]

Name	Description
partnerid	Abbreviation provided by Nielsen for each provider or publisher
filetype	exposure, dcr-exposure, dar-exposure, audio-exposure, etc., where: exposure is reserved for multi-product files <product>-exposure is for single product files, where <product> is [dar|dcr|dtvr|ctvc|audio]
initid	integration id: unique identifier provided by Nielsen
appid	Nielsen-provided server application identifier
starttime	start date and hour of the data in the file in UTC Example format: yyyymmddhh
endtime	end date and hour (not inclusive)  of the data in the file in UTC Example format: yyyymmddhh

Success File

Empty _SUCCESS file should be provided to indicate that data delivery for a particular hour and split is completed (even if there is no data for that particular hour and split).

Manifest File

A manifest should be provided which contains metadata related to the uploaded file(s). The manifest is a text file in json format that implements the AWS unload manifest file format. It has the same name as the data file, but has the _manifest suffix.

Example:

 
{

   "entries": [

     {"url":"s3://bucket/prefix/0000_object_00.snappy.parquet", "mandatory":true},

     {"url":"s3://bucket/prefix/0001_object_00.snappy.parquet", "mandatory":true},

     {"url":"s3://bucket/prefix/0002_object_00.snappy.parquet", "mandatory":true},

     {"url":"s3://bucket/prefix/0003_object_00.snappy.parquet", "mandatory":true}

   ],

   "meta": {

     "schema_version": "S2SV1.7.0",

     "accreditation_status": "0",

     "start_time": "1710154800",

     "end_time": "1710158399",

     "record_count": 55

   }
 }

The manifest contains a complete list of all files provided for a given period and split, as well as a meta data (a.k.a. header) which should include the following attributes:

Parameter	Description	Require	Specified	Format / Example	Type
schema_version	Schema Version	Yes	Nielsen	S2SV1.7.0	String
accreditation_status	Accreditation Status	No	Client	MRC = 1	String
data_start_time	Data Start Time (min)	Yes	Client	Format:32-bit unsigned int Unix time in seconds	String
data_end_time	Data Start Time (max)	Yes	Client	Format:32-bit unsigned int Unix time in seconds	String
record_count	Number of records in data file	Yes	Client	Example: 31337	Number

Data delivery example for hour 11 (11:00:00 AM UTC to 11:59:59 PM UTC):

useast1-nlsn-w-dig-sei-acme-feeds-prod/dar-exposure/ios/2022/05/25/11/acme_dtvr-exposure_a9ddf15ea054ea415718767ea6_P47C2495B-BBBA-56DE-BE99-14758F92F034_2024031111_2024031112_0000.json

useast1-nlsn-w-dig-sei-acme-feeds-prod/dar-exposure/ios/2022/05/25/11/acme_dtvr-exposure_a9ddf15ea054ea415718767ea6_P47C2495B-BBBA-56DE-BE99-14758F92F034_2024031111_2024031112_0001.json

useast1-nlsn-w-dig-sei-acme-feeds-prod/dar-exposure/ios/2022/05/25/11/acme_dtvr-exposure_a9ddf15ea054ea415718767ea6_P47C2495B-BBBA-56DE-BE99-14758F92F034_2024031111_2024031112_0002.json

useast1-nlsn-w-dig-sei-acme-feeds-prod/dar-exposure/ios/2022/05/25/11/acme_dtvr-exposure_a9ddf15ea054ea415718767ea6_P47C2495B-BBBA-56DE-BE99-14758F92F034_2024031111_2024031112_0003.json

useast1-nlsn-w-dig-sei-acme-feeds-prod/dar-exposure/ios/2022/05/25/11/acme_dtvr-exposure_a9ddf15ea054ea415718767ea6_P47C2495B-BBBA-56DE-BE99-14758F92F034_2024031111_2024031112_manifest

useast1-nlsn-w-dig-sei-acme-feeds-prod/dar-exposure/ios/2022/05/25/11/_SUCCESS

SLA

The files must be delivered into the proper S3 bucket within 3 hours of the start of that hourly viewing file interval.For example files from 1:00 AM to 2:00 AM must be delivered before 4 AM.

Schema Parameter Definitions

Parameter		Description	Required	Format / Example
sessionid		Unique, client generated value that represents the start of a user session. “Session” is defined as continuous (flexible) interaction with an application that may span multiple streams.	Yes	Format: alphanumeric Example: Random GUID: 70fa265f-5d49-4af7-ba9e-5e9da416bf78
ad		Array that contains advertisement-related parameters indented below	Required	Format: "viewedads": [ { "dar_url":"http://secure-gl.imr...", "publisher_name":"Publisher 123", ... } ]
{	dar_url	The DAR url for the specific Nielsen campaign to be tracked. In cases of 3rd party DAR urls, this url should be intercepted and unaltered by the publisher/provider	Yes	Example: http://secure-gl.imrworldcwide.com/cgi-bin/m?ca=nlsn1234&cr=678&ce=abc&pc=12345&ci=nlsnci123&am=1&at=view&rt=banner&st=image&r=12345
	publisher_name	Name of the publisher where the ad or content is being served.	Yes	Example: Publisher 123
	publisher_user_id	Publisher-specific (first party) user ID (should remain persistent).	Yes	Example: ed36968977606872e4312943c218568123786342
	provider_name	Name of the provider supplying the data to Nielsen.	For CTV (only for provider onboarding)	Example: Provider 123
	provider_user_id	Provider-specific user ID (must remain persistent indefinitely)	For CTV (only for provider onboarding)	Example: A769C2B-3CBD-5784-852F-C57875CC9D91A
	gracenote_id	Gracenote TMS ID (If available) should be passed for all telecasted content.	Required if id3 not provided	Format: 14 character string. Normally leading with 2 alpha characters ('EP', 'MV', 'SH' or 'SP'), followed by 12 numbers. Example: SH009311820022
	program_genre	Original broadcast time of content (if applicable) in Unix epoch timestamp format	Required for CTV
}	original_airtime	Gracenote TMS ID (If available) should be passed for all telecasted content.	Required for CTV	Example: 1531337551
dma		Designated Market Area where viewing occurred	Yes	501
device_id		Mobile Ad ID (IDFA, ADID), Connected Device ID	Yes, if available	A487421B-XXXX-YYYY-8343-E3BBB66E44F2
is_device_id_hashed		If device_id is SHA-256 hashed	Yes	1 = hashed 0 = else
hem_sha256		SHA-256 hashed email Note: email normalization rules applied before hashing	Strongly Preferred	671638d17df92ac6e46e3f00ad0e78f09116ca29128e93dcb53ff340abdeb2c2
luid		Living Unit ID - Experian Household ID	Yes, for CTV if available	B0EOFEDGD
uoo		User opt out flag for demographic measurement	Yes	Format: integer 0 = not opt-out 1 = opt-out
xdua		Device HTTP User Agent string	Yes, or alternatives below	Format: alphanumeric Example: Apple-iPhone1C2/801.293
xff		IP address	Yes, or alternatives below	Format: xxx.xxx.xxx.xxx Example: 172.217.22.14
psudo_id_sha256		Hashed Device User Agent string + IP address	No	421c76d77563afa1914846b010bd164f395bd34c2102e5e99e0cb9cf173
The following 4 parameters become mandatory if Device User Agent String (UAS) is not available
device_platform		Device platform(mobile, desktop, connected device)	Required if no UAS	DSK, MBL, OTT
device_type		Device type for connected devices	Required if no UAS	AMN, APL, DVD, GGL, PSX, RKU, STB, STV, XBX
os_group		Operating system of mobile devices. All other device should be NA	Required if no UAS	IOS, DROID, NA
device_group		Type of device: phone, tablet, desktop, set top box (CTV or OTT), unknown	Required if no UAS	DSK, PHN, TAB, STV, DVD, PMP, OTHER, STB, XBX, PSX, AMN, APL, GGL, RKU, UNWN
The following 4 parameters become mandatory if IP Address is not available
robotic_flag		Flag indicating IAB bot rule if IP address present in IAB bot list	Required if no IP	Format: integer 0 = not bot 1 = bot
zip_code		ZIP code where viewing occurred	Required if no IP	10001
country		Country ISO 3166 ALPHA-2	Preferred; required if no IP	US, CA, etc.

Note: All parameters are case sensitive.