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Radha Rathinavel PandianRadha Rathinavel Pandian 

Unable to install app package in sandbox

Hi,

I am facing trouble to install my app exchange package on my sandbox account since my  sandbox credential works only on my custom url "https://xx--xx.lightning.force.com". Please assist me
Rahul KumarRahul Kumar (Salesforce Developers) 
Hi Radha,

May I suggest you please refer the below link for reference. hope it helps.

Please mark it as best answer if the information is informative.so that question is removed from an unanswered question and appear as a proper solution.​

Thanks
Rahul Kumar