Data Locker—for ad networks

At a glance: Data Locker for ad networks delivers aggregated performance data to the partner's storage on AWS or GCS.


Data Locker for ad networks

Data Locker for Partners delivers selected app performance data to cloud storage. Advertisers set permissions that control the data sharing.

Data Locker features

Feature Description
Storage options (cloud)

Storage (bucket) owned by you on:

  • AWS
  • GCS

About storage options

Multi app support

Supports data of apps that are integrated with you. The advertiser must give permission per report for you to get the data. 

Data format options
  • CSV
  • Parquet
Data freshness

Freshness depends per report type:

  • Hourly: Data generated continuously
  • Daily: Some reports are prepared on a daily basis and are ready on the following day

Reports—for partners

Reports available
Report type (topic) Data access permissions required Data freshness* Available to
Aggregated campaign performance 
  • Aggregated conversions
  • Aggregated in-app events
  • Aggregated revenue
Daily Ad networks
Ad revenue signals for UA ad networks
  • Access ad revenue raw data
Daily Ad networks

* Key to abbreviations


  • Reports are streamed to the h=23 folder.
  • These reports are typically available by 10:00-12:00 UTC in the h=23 folder of the preceding day.
  • For example, the report for data generated on Monday is in the Monday h=23 folder.
  • The data is available on Tuesday:
    • For aggregated campaign performance: After 10:00 UTC.
    • For ad revenue signals: After 21:00 UTC.


Data storage architecture


Data is written to your selected storage option. You can switch from one option to another at any time. The change occurs within hours. 

Within the storage, data is organized in a hierarchical folder structure, illustrated in the figure that follows, according to report type, date.


Data of a given report is contained in the hour (h) folders associated with that report.

  • The number of hour folders depends on if the report streams hourly or daily.
  • Data files consist of compressed GZ files containing Parquet or CSV files. 
  • Data files consist of columns (fields).
  • The column structure is defined per report type. 

Folder structure

Folder Description 


  • The top-level folder in the bucket depends on the storage provider.
  • The data-locker-hourly folder contains the report topics. 

 Examples of folder structure based on bucket owner and cloud provider:

  • Your AWS bucket: <af-datalocker-your folder name>/<data-locker-hourly>
  • Your GCS bucket: <data-locker-hourly>
t (topic) Report type relates to the subject matter of the report. 
dt (date)

This is the related data date. In most cases, this means the date the event occurred. 

h (hour)

The h folders relate to the time AppsFlyer received the data. For example, install events received between 14:00-15:00 UTC are streamed to the h=14 file. Note! There is a lag, of about 6 hours, between the time the data arrives in AppsFlyer until the h folder is streamed to Data Locker. For example, the h=14 folder is streamed six hours later at 23:00 UTC. 

Folder characteristics:

  • There are 24 h folders numbered 0-23. For example, h=0, h=1, and so on. 
  • In addition, a late folder contains events from the preceding day arriving after midnight (in other words, events that arrive between 00:00–02:00 UTC of the following day). For example, if a user installs an app on Monday at 08:00 and the event arrives on Tuesday at 01:00, the event is recorded in Monday's late folder. 
  • Data arriving after 02:00 is recorded in the folder of the actual arrival date and time. 
  • You must use the data in the late folder. It isn't contained in any other folder. 
  • _temporary folder: In some cases, we generate a temporary folder within an h folder. Disregard temporary folders and subfolders. Example: /t=impressions/dt=2021-04-11/h=18/_temporary.
Unified data

Data for all apps is provided in unified data files. When you load the data, use the row-level app_id field to distinguish between apps.

Example of data files are in the h=2 folder


  • In your data loading process ensure that:
    • You begin to consume data only after the _SUCCESS flag is set.
    • You load all files having a .gz extension.
Completion flag

The last file (completion) flag is set when all of the data for a given h folder has been written. 

  • Don't read data in a folder before verifying that the _SUCCESS flag exists.

  • The _SUCCESS flag is set even in cases where no data is written to the folder. Meaning the folder is empty.


Files are zipped using gz. After unzipping:

  • The files have no extension.
  • Each file has a header row containing the column (field) names. 
Column sequence

The sequence of fields in reports is always the same. New fields are added to the right of existing fields. 

Column (field) definitions are defined per report. Check the relevant report article for the description. 

Field population considerations

Blank or empty fields: Some fields are populated with null or are empty. This means that in the context of a given report there is no data to report. Typically null means this field is not populated in the context of a given report and app type. Blank "" means the field is relevant in its context but no data was found to populate it with. 

Time zone and currency:

App-specific time zone and currency settings are disregarded for data provided by Data Locker. As such: 

  • Time zone: Date and hour data are in UTC
  • Currency: The field event_revenue_usd is in USD

Values with commas: These comas are contained between double quotes `"`, for example, `"iPhone6,1"`.


Storage options

  • Data is written to a storage owner of your choice as follows: AWS or GCS.
  • You can change the storage selection at any time.
  • If you change the storage, the following happens:
    • We start writing to the newly selected storage within one hour.
    • We continue writing to the existing storage during a transition period of 7 days. The transition period expiry time displays in the user interface. Use the transition period to update your data loading processes. 
    • Changing buckets: If you change storage, data is sent to both for a transition period of 7 days, allowing you to align your data consumption process. 
  Advertiser-owned storage (AWS)
Bucket name
  • GCS: No restriction
  • AWS: Set by you. Must have the prefix af-datalocker-.

Example: af-datalocker-your-bucket-name

Storage ownership Ad network 
Storage platform AWS or GCS
Credentials to access data by you Not known to AppsFlyer. Use credentials provided by the storage provider.
Data retention Controlled by you

You control the storage. 

  • AWS: AppsFlyer requires GetObject, ListBucket, DeleteObject, PutObject permission to the bucket. The bucket should be dedicated to AppsFlyer use. Don't use it for other purposes.
  • GCS

Notice to security officers


  • The bucket is for the sole use of AppsFlyer. There should be no other entity writing to the bucket.
  • You can delete data in the bucket 25 hours after we write the data.
  • Data we write to the bucket is a copy of data already in our servers. The data continues to be in our servers in accordance with our retention policy. 
  • For technical reasons, we sometimes need to delete and rewrite the data. For this reason, we require delete and list permissions. Neither list nor delete are a security risk for you. In the case of list, we are the sole entity writing to the bucket. In the case of delete, we can regenerate the data. 


Set up Data Locker

Use this procedure to set up Data Locker. Changes to settings take effect within 3 hours. 


Complete one of the following storage procedures:

AppsFlyerAdmin_us-en.png To set up Data Locker:

  1. Log in to your AppsFlyer partner dashboard.
  2. Select any app.
  3. Go to Integration > Data Locker. 
  4. Choose the integration method. Do one of the following:
    • Select Your AWS bucket.
      1. Enter your AWS bucket name. Don't enter the prefix af-datalocker-
      2. Click Test.
      3. Verify that no error message displays indicating that the bucket path is invalid.
    • Select Your GCS bucket then enter your GCS bucket name and click test.
  5. Select file format:
    • [Default] Parquet.
    • CSV.
  6. Click Apply.
  7. Select one or more report types.
  8. Click Apply
  9. Click Save Configuration.

Additional information

Traits and Limitations

Trait Remarks 
Agencies Not for use by agencies
App-specific time zone Not Applicable
App-specific currency  Not supported
Size limitations Not applicable
Data freshness Data is updated according to the specific report data freshness detailed in this article.
Historical data

Not supported

Team member access Team members cannot set up Data Locker. 


Was this article helpful?