How to Add Security Token to Password in Salesforce

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In Salesforce, you don't actually "add" a security token to your password. The security token acts as a second layer of authentication, separate from your password. 

However, you can easily reset it and have a new one sent to your email address and achieve a similar effect. Here's how it works:

1. Go to your avatar icon on the top right and select Settings.
2. In the Quick Find box, type Reset and choose Reset My Security Token (under Personal Information.)
3. Click Reset Security Token.
4. You will receive a new security token in your email inbox.

Note: This token is typically used with your password when logging in through untrusted networks or integrations like the Salesforce API.