Who is impacted by this change? Any partner or customer using Web-to-Case (W2C), Web-to-Lead (W2L) functionalities on their website, or using www.salesforce.com as an API endpoint.
Why the change? To improve the performance of the Web-to-Case (W2C) and Web-to-Lead (W2L) functionality, the endpoint that receives the W2C/W2L form submission data from company websites to create leads/cases in Salesforce will be replaced with a new endpoint URL.
In addition, the internal routing will be retired, and any API calls made to the www.salesforce.com endpoint will need to be changed to use the https://login.salesforce.com endpoint. If no action is taken the API will no longer function, and your API login calls will result in a “404 (Page Not Found)” error.
NOTE: This only applies to API traffic; logging in from a browser by clicking “login” will still work.
What action do I need to take? Partners and customers using www.salesforce.com will need to update their integrations to replace www.salesforce.com with https://login.salesforce.com as the official endpoint for Salesforce APIs prior to November 17, 2017.
If partners or customers are using either or both of these functionalities, they will need to update the W2C/W2L HTML code in their websites prior to November 17, 2017. As the new endpoint URL is already available, partners and customers are strongly encouraged to complete these updates as soon as possible to take advantage of the improved functionality performance. Please follow the below steps:
1. For websites that contain the Web-to-Case and/or Web-to-Lead forms, do a global search across the website HTML code for either of these code snippets: