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Taha HaiderTaha Haider 

How to move application in salesforce from one org to another org?

AbhishekAbhishek (Salesforce Developers) 
Eclipse is a good option to move the entire code from One Dev Org to another. When you move your entire code from One Dev Org to another using Eclipse, you just need to select all components from source org. Validate the components. If you'll get any sync error. You need to fix it in your source org first. The custom button for the VF page will be synced automatically when you select the object and linked page. There is no separate option to select buttons.


For further reference check this too,
https://help.salesforce.com/articleView?id=000322219&type=1&mode=1


if you find the above information helpful mark it as the best answer.