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Custom Button Trick
I currently set up our custom buttons with
https://na8.salesforce.com/a0C/e?
When I go into the sandbox I have to modify the intance number. Someone told me you can exclude the instance so you don't have to modify sandbox custom buttons.
What is the short cut?
Ignore the 'https://na8.salesforce.com' and just start your custom button URL with /a0C/e?