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The Synthetic Credential Vault securely stores credentials used for synthetic jobs. When you create a synthetic job with a synthetic script, you can retrieve a stored key/value credential pair, like a username and password, and inject the credential into the synthetic script. Then when the synthetic job runs, the synthetic script executes and retrieves the credentials stored in the Synthetic Credential Vault.

To access the Synthetic Credential Vault in the Controller, go to the gear icon (> Tools > Manage Synthetic Credentials. 

Overview of Synthetic Credentials

A synthetic credential is defined as a key-value pair stored in the Synthetic Credential Vault. If you want to use a combination of credentials, such as a username-password combination, you must create two separate credentials: one credential for the username and another credential for the password.


This table describes the requirements and limitations of the Synthetic Credential Vault. 



Only available for SaaS customers.


Limited to 1000 credentials per EUM account.

Synthetic jobs

Limited to 100 credentials per synthetic job.

Credential versions

Past versions of credentials are not stored. Once you update a credential, you cannot retrieve the previous version.

User level access

All users can view keys, users, timestamps, and associated applications.

Only admin-level users can:

  • toggle hide/show values in the Controller UI.
  • add, edit, and delete credentials.

How to Use

You can use the Synthetic Credential Vault in the following way: 

  1. Add a credential in key-value pair to the Synthetic Credential Vault. 
  2. Create a synthetic job that is using a synthetic script. 
  3. Inject the credential key into the appropriate place in your synthetic script. See the example from Use Synthetic Credentials in a Synthetic Script.
  4. The synthetic job will run and retrieve the credential value associated with the stored credential key. 

Syntax Rules

This table describes credential syntax rules for the Synthetic Credential Vault and synthetic scripts. 


  • 1-100 characters

  • Alphanumeric characters, hyphens, and underscores only.

  • Keys must be unique per EUM account.


  • 1-350 characters

  • Any non-control, printable UTF-16 characters

Credential placeholder (used in synthetic scripts)

Create Credentials

In the Synthetic Credential Vault, you can add a single or multiple credentials.

Add a single credential

These instructions demonstrate how to add a single credential for a sample email and password.

  1. Navigate to the gear icon ()> Tools > Manage Synthetic Credential.

  2. Click Add. 

  3. Enter a key and value. See Syntax Rules

  4. (Optional) Select an associated application. When you search for credentials in the synthetic script, associated credentials are suggested first. 

Add multiple credentials

You can add multiple credentials at once using the Import button. Make sure the imported credentials follow Syntax Rules.

These instructions demonstrate how to add a single credential for a sample email and password. 

  1. Navigate to the gear icon () > Tools > Manage Synthetic Credentials.

  2. Click Import.

  3. Copy and paste credentials or type them line by line. The maximum number of credentials that can be imported at once is 250.

Note: The associated application option is not available for bulk import. You must edit each credential individually to specify the associated application. 


Manage Credentials

In the Synthetic Credential Vault, you can edit, delete, sort and search credentials.

Edit Credentials

With admin-level access, you can edit the associated application for existing and imported credentials. However, you can only edit one credential at a time. 

Delete Credentials

With admin-level access, you can remove one or more credentials at a time.

Sort Credentials

You can sort credentials alphabetically by clicking on the key name, user, and timestamp columns. 

Search Credentials

You can search credentials by key name, user, and application. 

Use Credentials in a Synthetic Script

You can retrieve credentials stored in the Synthetic Credential Vault with a synthetic script. Credentials associated to a specific application appear first when you start typing the key. 

  1. To create a synthetic job in the Controller UI, go to User Experience > Jobs > Add
  2. Add your synthetic script. See Write Your First Script for more information.
  3. Locate the DOM element.

  4. Enter the corresponding credential using the syntax "<%key%>".

    Synthetic Script
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