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An example of some automatically created Salesforce custom fields is shown below in a view from the standard Custom Fields page in Administration:
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Remote Linking Custom Fields

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1. Go to  Cog Icon  > Issues.
    
2. In the sidebar, under Fields, click Custom Fields.
    
3. Click on the Add Custom Field link near the top.
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4. The Select a Field Type dialog box will appear.
   Click Advanced.
   
   
5. Choose the field you want to create, either Remote Object Link or Multi Object Link and click Next.
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6. Type in a Name and Description for your new field.
   Then click Create. and associate it with issue types and projects before clicking Finish.
    
7. You are now asked to associate the field you just created to screens.
   Choose the screen you want to associate the field with and click Update.
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8. You will now need to specify which Salesforce object you want the field to link to.

   Find your new field's listing and on the far right, click

   the Small Cog

   the Cog Icon > Configure:

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9. At the screen for the Default Configuration Scheme for your field, click the Edit Configurations link

   next to 

   under Configurations.
   

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10. On the Edit Display Template screen, choose the Remote System and Remote Object you want linked to the custom field.
    Then click Submit.
     
11. You can now start adding a Remote Object Link.
    
    

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