You can read more about deploying custom applications to Business Central online tenants at https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-deploy-tenant-customization.
You can read more about deploying custom applications to Business Central online tenants at https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-deploy-tenant-customization.