Global Targeting Parameters

Prebid Mobile supports the following global targeting parameters. These targeting parameters are set only once and apply to all Prebid Mobile ad units. They do not change for a given user session.

Global User Targeting

Year of Birth

You can retrieve and set the year of birth for targeting:

yob = TargetingParams.getYearOfBirth();


You can retrieve and set the following values for gender:

  • MALE
gender = TargetingParams.getGender();

User Keywords

User keywords are a list of keywords, intrests or intent as defined by user.keywords in OpenRTB 2.5. Any keywords passed in the UserKeywords object may be passsed to DSPs.

Add User Keywords

void addUserKeyword(String keyword)
void addUserKeywords(Set<String> keywords)

Remove User Keywords*

void removeUserKeyword(String keyword)

Clear User Keywords*

void clearUserKeywords()



Global Application Targeting

Bundle ID

Use the following code to retrieve the platform-specific bundle/package name:

bundleName = TargetingParams.getBundleName();

Pass in the platform-specific identifier - the bundle/package name - to set the bundle ID:



Retrieve and set the domain of your app with the following commands:

domain = TargetingParams.getDomain();

Store URL

Retrieve and set your app’s store URL:

storeUrl = TargetingParams.getStoreUrl();

Open Measurement SDK (OMSDK)

OMSDK is designed to facilitate 3rd party viewability and verification measurement for ads served in mobile app enviroments. Prebid SDK will provide the signaling component to Bid Adapters, by way of Prebid Server, indicating the impression is eligible for OMSDK support. Prebid SDK does not currently integrate with OMSDK itself, instead it will rely on a publisher ad server to render viewability and verification measurement code.

There three components to signaling support for OMSDK:

  • Partner Name
  • Partner Version
  • API code

Partner Name

This will be the IAB OMSDK compliant partner name responsible for integrating with the OMSDK spec. See below for configuration and examples


Open Measurement partner name.





Partner Version

The OMSDK version number the partner integrated with. See below for configuration and examples.


Partner’s OMSDK version number implementation





API Code

Per OpenRTB 2.5, support for OMSDK is signaled using the imp.[media type].api field represented in Prebid SDK withing each ad format type under the parameters object. Refer to the documentation of the respective ad unit class.


BannerAdUnit bannerAdUnit = new BannerAdUnit("PREBID_SERVER_CONFIGURATION_ID", 300, 250);
bannerAdUnit.setUserKeyword("my_key", "my_value");
BannerBaseAdUnit.Parameters parameters = new BannerBaseAdUnit.Parameters();
parameters.setApi(Arrays.asList(new Signals.Api(7)));

Note that the OMID value for imp.banner/video/native.api field should be 7, as defined by the IAB in the OMSDK v1.2 document.

Inventory (Context) Keywords

Context Keywords are a list of keywords about the app as referenced in OpenRTB 2.5 as app.keywords. Any keyword passed in the context keyword field may be passed to the buyer for targeting.

Add Context Keywords

void addContextKeyword(String keyword)
void addContextKeywords(Set<String> keywords)

Remove Context Keywords

void removeContextKeyword(String keyword)

Clear all Keywords

void clearContextKeywords()



First Party Data

First Party Data (FPD) is free form data supplied by the publisher to provide additional targeting of the user or inventory context, used primarily for striking PMP (Private MarketPlace) deals with Advertisers. Data supplied in the data parameters are typically not sent to DSPs whereas information sent in non-data objects (i.e. setYearOfBirth, setGender, etc.) will be. Access to FPD can be limited to a supplied set of Prebid bidders via an access control list.

Data is broken up into two different data types:

  • User
    • Global in scope only
  • Inventory (context)
    • Global scope
    • Ad Unit grain

The below first party user and inventory context will apply to all ad units. For ad unit level first party data, refer to First Partay Data section in the Ad Unit page.

First Party User Data

User specic data is passed in the global scope (i.e. applicable to all ad units).

Add User data

void addUserData(String key, String value)

Update User Data

void updateUserData(String key, Set<String> value)

Remove User Data

void removeUserData(String key)

Clear User Data

void clearUserData()


TargetingParams.addUserData("globalUserDataKey1", "globalUserDataValue1")

First Party Inventory (Context) Data

Inventory specific free form data decribing the context of the inventory.

Global Context Data

Add Context data

void addContextData(String key, String value)

Update Context Data

void updateContextData(String key, Set<String> value)

Remove Context Data

void removeContextData(String key)

Clear Context Data

void clearContextData()


TargetingParams.addContextData("globalContextDataKey1", "globalContextDataValue1, globalContextDataValue2")

Ad Unit Context Data

For ad unit context data, please refer to the ad unit section.

Access Control List

The First Party Data Access Control List provides a method to restrict access to first party data to a supplied list of bidders.

Add Bidder to Access Control List

Only bidders supplied in the ACL will have access to the first party data. If no bidder is supplied, Prebid Server will supply first party data to all bid adapers.

void addBidderToAccessControlList(String bidderName)

Remove Bidder from Access Control List

void removeBidderFromAccessControlList(String bidderName)

Clear Access Control List

void clearAccessControlList()



Global GDPR Targeting

Prebid Mobile supports the IAB GDPR recommendations. For a general overview of Prebid Mobile support for GDPR, see Prebid Mobile Guide to European Ad Inventory and Providing Notice, Transparency and Choice

Subject To GPDR

Enable (true) or disable (false) the ability to provide consent.

Retrieve subjectToGDPR


Set subjectToGDPR

TargetingParams.setSubjectToGDPR(context, true);

Retrieve gdprConsentString

context = TargetingParams.getGDPRConsentString();

Set gdprConsentString


Retrieve purposeConsent


Set purposeConsent


Prebid mobile also checks if the values are present in the SharedPreferences keys specified by the IAB. If the values are also set in these objects they will be passed in the OpenRTB request object.


Prebid supports passing of the Child Online Privacy Prection (COPPA) signal to Prebid Server (PBS) for all COPPA traffic. When PBS receives the COPPA flag we strip out all personal data from the requeset. For a general overview of COPPA, see the FTC’s guidlines.

Set Subject to COPPA

void setSubjectToCOPPA(boolean consent)



User Identity

Prebid SDK supports two interfaces to pass / maintain User IDs and ID vendor details:

  • Real-time in Prebid SDK’s API field setExternalUserIds
  • Store User Id(s) in local storage

Any identity vendor’s details in local storage will be sent over to Prebid Server as is, unadulterated. If data is sent in the API and entered into local storage, the API detail will prevail.

Prebid SDK API Access

Prebid SDK supports passing an array of UserID(s) at auction time in the field setExternalUserIds, that is globably scopped. It is sufficient enough to set the externalUserIdArray object once per user session, as these values would be used in all consecutive ad auctions in the same session.

* List containing objects that hold External UserId parameters for the current application user. * @param externalUserIds
public static void setExternalUserIds(List<ExternalUserId> externalUserIds){
    PrebidMobile.externalUserIds = externalUserIds;
* Returns the List that hold External UserId parameters for the current application user * @@return externalUserIds as Array.
public static List<ExternalUserId> getExternalUserIds() {
    return PrebidMobile.externalUserIds;



// User Id from External Third Party Sources
ArrayList<ExternalUserId> externalUserIdArray = new ArrayList<>();
externalUserIdArray.add(new ExternalUserId("", "111111111111", null, new HashMap() {
        put ("rtiPartner", "TDID");

externalUserIdArray.add(new ExternalUserId("", "999888777", null, null));
externalUserIdArray.add(new ExternalUserId("", "_fl7bV96WjZsbiUyQnJlQ3g4ckh5a1N", null, null));
externalUserIdArray.add(new ExternalUserId("", "AjfowMv4ZHZQJFM8TpiUnYEyA81Vdgg", null, null));
externalUserIdArray.add(new ExternalUserId("", "111111111111", 1, new HashMap() {
        put("third", "01ERJWE5FS4RAZKG6SKQ3ZYSKV");

//Set External User ID

Local Storage

Prebid SDK provides a local storage interface to set, retrieve or update an array of user IDs with associated identity vendor details. Prebid SDK will retrieve and pass User IDs and ID vendor details to PBS if values are present in local storage. The main difference between the Prebid API interface and the local storage interface is the persistence of storage of data. Local Storage data will persist across user sessions whereas the Prebid API interface (setExternalUserIds) persists only for the user session. If a vendor’s details are passed both in local storage and the Prebid API at the same time, the Prebid API data (setExternalUserIds) will prevail.

Prebid SDK Provides five functions to handle User ID details:

  • storeExternalUserId
  • fetchStoredExternalUserId
  • fetchStoredExternalUserIds
  • removeStoredExternalUserId
  • removeStoredExternalUserIds
* Use this API for storing the externalUserId in the SharedPreference
* @param externalUserId the externalUserId instance to be stored in the SharedPreference
* */
public static void storeExternalUserId(ExternalUserId externalUserId) {
    if (externalUserId != null) {

    else {
        LogUtil.e("Targeting", "External User ID can't be set as null");


* Returns the stored (in the SharedPreference) ExternalUserId instance for a given source
* @param source
* */
public static ExternalUserId fetchStoredExternalUserId(@NonNull String source) {
    if (!TextUtils.isEmpty(source)) {
        return StorageUtils.fetchStoredExternalUserId(source);

    return null;

* Returns the stored (in the SharedPreferences) External User Id list
* */
public static List<ExternalUserId> fetchStoredExternalUserIds() {
    return StorageUtils.fetchStoredExternalUserIds();

* Removes the stored (in the SharedPreference) ExternalUserId instance for a given source
* @param source
* */
public static void removeStoredExternalUserId(@NonNull String source) {
    if (!TextUtils.isEmpty(source)) {


* Clear the Stored ExternalUserId list from the SharedPreference
* */
public static void removeStoredExternalUserIds() {


//Set External User ID
TargetingParams.storeExternalUserId(new ExternalUserId("", "111111111111", 1, new HashMap() {
        put ("third", "01ERJWE5FS4RAZKG6SKQ3ZYSKV");


//Get External User ID
ExternalUserId externalUserId = TargetingParams.fetchStoredExternalUserId("");

//Get All External User IDs
List<ExternalUserId> externalUserIdList = TargetingParams.fetchStoredExternalUserIds();

//Remove External UserID

//Remove All External UserID

Further Reading