Step-by-step
1, Login to Business Central
2. Click the link Admin Center in Settings
3. Please be remind that only 3 Sandbox can be create. If you need to create new sandbox by copy data from production, you need to delete either one sandbox first.
***PLEASE DOUBLE CHECK THE TYPE BEOFRE YOU DELETE THE SELECTED ENVIORMENT. MAKE SURE THE TYPE IS Sandbox***
4. Select the New action on the action ribbon.
5. Provide a name for your environment.
6. Select Sandbox in the Type drop-down list.
7. Specify if you want the sandbox environment to contain a copy of another environment.
8. In the Country drop-down list, select the country for the environment (e.g. HK). The selected country determines the localization for the environment and the Azure region in which the environment is created and stored.
9. The sandbox environment won't be accessible until the State shows as Active.