# Upgrade options (/log-in/upgrade)



PayPal recommends that new apps integrate with OpenID Connect. Apps integrated with OpenID will continue to work, but won't receive new features.

## Log in with PayPal legacy integrations [#log-in-with-paypal-legacy-integrations]

For Log in with PayPal legacy integrations (prior to January 2018), replace the `/connect` with `/signin/authorize` in your links, for example, instead of

<div className="pl-[1.625rem]" />

```html lineNumbers
https://www.sandbox.paypal.com/connect?flowEntry=static&client_id=[client id]&scope=[list of scopes]&redirect_uri=[return URL]
```

Log in with PayPal legacy integrations (prior to January 2018) use:

<div className="pl-[1.625rem]" />

```html lineNumbers
https://www.sandbox.paypal.com/signin/authorize?flowEntry=static&client_id=[client id]&scope=[list of scopes]&redirect_uri=[return URL]
```