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Subodh chaturvedi 5Subodh chaturvedi 5 

suppose endpoint  URL  get changed how you will change it and how you inform it to the end users?

suppose endpoint  URL  get changed how you will change it and how you inform it to the end users?
SandhyaSandhya (Salesforce Developers) 

This endpoint change would effect your org integration's through any ETL tools or real-time, that are using the Old Salesforce API endpoint to make calls to Salesforce. You need to update this URL or Salesforce API endpoint in all your integrations. All your integrations will run as usual after you make these changes.

And you need to notify your end users regarding this change by sending an email with all the details, for example, see below.

What is changing?

Currently, customers can use https://www.salesforce.com as an API endpoint that will route them to the correct instance. As of January 1, 2016, the internal routing will be retired, and any API endpoints will need to be changed Note: This only applies to API traffic; logging in from a browser by clicking “login” will still work.

Why are we retiring the internal routing?

This change is to ensure we focus our development efforts on delivering better performance and higher availability on the dedicated API endpoints.

What action do I need to take?

Update your integrations to replace https://www.salesforce.com with https://login.salesforce.com as the official endpoint for the Salesforce API.

What will happen if I do not take action?

The API will no longer function, and your API calls will result in a “404 (Page Not Found)” error.

How can I get more information?

For additional questions, you can open a case with Customer Support via the Help & Training portal.

Hope this helps you!

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