[Home](./index.md) > [@firebase/auth](./auth.md) > [ActionCodeSettings](./auth.actioncodesettings.md) > [handleCodeInApp](./auth.actioncodesettings.handlecodeinapp.md) ## ActionCodeSettings.handleCodeInApp property When set to true, the action code link will be be sent as a Universal Link or Android App Link and will be opened by the app if installed. Signature: ```typescript handleCodeInApp?: boolean; ``` ## Remarks In the false case, the code will be sent to the web widget first and then on continue will redirect to the app if installed.