Steps to get the SalesForce Integration User Id

Note:  Integration user should have been already created.

1. Click on Developer Console(Please refer below screenshot)

     2. Click on Query Editor(Please refer below screenshot) ->Execute the below query.

         select id,username from user where username='<username>'

Note: Please make sure that the username is in single quotes.

    3. Click on execute.

    4. Copy id and paste it in Salesforce Integration user id column(As highlighted in below                    screenshot).