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FTP Name and File Size Requirements for Inbound Data Files

Describes the required fields, syntax, naming conventions and file sizes you need to follow when sending data to Audience Manager. Set the names and sizes of your files according to these specifications when you send data to an Audience Manager FTP directory.
We are gradually phasing out support for FTP configurations. While inbound data file ingestion is still supported in existing FTP integrations, we strongly recommend using Amazon S3 to onboard offline data for new integrations. See Amazon S3 Name and File Size Requirements for Inbound Data Files for details.
The text styles ( monospaced text , italics , brackets [ ] ( ) , etc.) in this document indicate code elements and options. See Style Conventions for Code and Text Elements for more information.

File Name Syntax

FTP file names contain the following required and optional elements:
For other accepted file name formats, see Custom Partner Integrations .
Audience Manager only processes ASCII and UTF-8 encoded files.

Name Elements

The table defines the elements in an FTP file name.
File Name Element Description
The path to and name of your Audience Manager FTP directory. Contact your Account Manager for the FTP directory and credentials.
An lD that tells Audience Manager if a data file contains your own user IDs or Android or iOS IDs. Accepts the following options:
  • Data Partner ID: This is a unique ID Audience Manager assigns to your company or organization. Use this assigned ID in a file name when sending in data that contains your own user IDs. For example, ...ftp_dpm_21_123456789.sync tells Audience Manager that a partner with ID 21 sent the file and it contains user IDs assigned by that partner.
  • Android IDs (GAID): Use ID 20914 in a data file name if it contains Android ID. For example, ...ftp_dpm_20914_123456789.sync tells Audience Manager that the data file contains Android IDs only.
  • iOS IDs (IDFA): Use ID 20915 in a data file name if it contains iOS IDs. For example, ...ftp_dpm_20915_123456789.sync tells Audience Manager that the data file contains iOS IDs only.
Note: Do not mix ID types in your data files. For example, if your file name includes the Android identifier, don't put iOS IDs or your own IDs in the data file.
A placeholder for an ID. For example, you could set it to your Audience Manager ID if you set the DPID to a data source ID or an Android or iOS ID. This lets Audience Manager link the file data back to your organization.
For example:
  • ...ftp_dpm_33_21_1234567890.sync shows a partner with ID 21 has sent in data from a data source that uses ID 33.
  • ...ftp_dpm_20914_21_1234567890.sync shows a partner with ID 21 has sent in data that contains Android IDs.
  • ...ftp_dpm_20915_21_1234567890.sync shows a partner with ID 21 has sent in data that contains iOS IDs.
(.sync |.overwrite)
Synchronization options that include:
  • sync : Normal scenario when third-party data providers send traits on a per-user basis to be added or removed in the Audience Manager system.
  • overwrite : Lets customers and data providers send a list of traits on a per-user basis that should overwrite all of this user's existing traits for a given data source in Audience Manager. You do not need to include all of your users in an overwrite file. Include only those users that you want to change. Traits that are not assigned to the target data source will not be erased.
An integer. Used when you split large files into multiple parts to improve processing times. The number indicates which part of the original file you're sending in.
For efficient file processing, split your data files as indicated:
  • Uncompressed: 1 GB
  • Compressed: 200-300 MB
See the first 2 file name examples below.
A 10-digit, UTC UNIX timestamp in seconds. The timestamp helps make each file name unique.
Gzip is the allowed compression format for an FTP file name. If you use file compression, make sure the file name has the proper extension.
Compressed files must be 3 GB or smaller. If your files files are larger, please talk to Customer Care. Although Audience Manager can handle large files, we may be able to help you reduce the size of your files and make data transfers more efficient. See File Compression for Inbound Data Transfer Files .

File Name Examples

The following examples show properly formatted file names. Your file names could look similar.
  • ftp_dpm_478_1366545717.sync.1.gz
  • ftp_dpm_478_1366545717.sync.2.gz
  • ftp_dpm_478_1366545717.overwrite
Download the sample file if you need additional examples. This file is saved with the .overwrite file extension. Open it with a simple text editor.

Accepted File Sizes

Consider the figures below for fastest/earliest processing of your files as well as for file size limitations when you send data to an Audience Manager / FTP directory.
File Type Optimal Size Maximum Size
200-300 MB
3 GB
1 GB
5 GB