How can I sign the contract for the Sabadell Online Account online?

The contract is the last step in the registration process. Through a trusted electronic service provider, you will receive an SMS to the mobile phone you have registered with the password that you have to enter on the screens.
This third-party service provider will send you a certified copy of the contract.
You will also have a copy of the signed contract available in the  "Profile and configuration" > "Documentation" > "Contracts" section of your remote banking.