# Dynamic Data Source Selection

The Dynamic Data Source Selection popup allows you to customize dynamic data usage wherever needed. Data can be selected from:

* Previous actions
* Input payload
* Environment Secrets Manager
* Decoded tokens (e.g., user tokens)

#### Examples with Screenshots

**Using Email from Input Payload**:

* Select the email from the input payload of the API request.
* Use it for querying the database to check if the user exists.

<figure><img src="https://3583334649-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FdrfsCZXcXll5UVMF1xCv%2Fuploads%2FnYj0VHgDgFPLmPXV3taj%2Fpayload_selection_using_dyanmic.png?alt=media&#x26;token=626b9a03-29fa-46f7-9b87-93526312aed3" alt=""><figcaption><p>Data is taken from input payload</p></figcaption></figure>

**API Key from Secrets Manager**:

* Retrieve the API key for the SendGrid email service from the Secrets Manager.
* Use it securely for sending emails.

<figure><img src="https://3583334649-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FdrfsCZXcXll5UVMF1xCv%2Fuploads%2FFntWQ3mlnH6OYLLI9aKW%2Fsecrets_selection_using_dynamic.png?alt=media&#x26;token=4e528994-771a-423a-8545-09652d2a232b" alt=""><figcaption><p>Data is taken from secrets manager</p></figcaption></figure>

**Custom User Detail Handling**:

* Take user details from previous actions to build custom text.
* Return a custom object with data derived from the results of previous actions.

<figure><img src="https://3583334649-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FdrfsCZXcXll5UVMF1xCv%2Fuploads%2Fk5HfkD3ir7XKCIInHVrL%2Fprevious_action_using_dynamic.png?alt=media&#x26;token=b6ed73f0-c8b5-4723-a2e5-3ce1c72f1593" alt=""><figcaption><p>Data is taken from previous action results</p></figcaption></figure>

This popup provides a flexible and intuitive way to manage dynamic data across various actions .