How to connect to Azure SQL Managed Instance using Power Apps is ISE the only option?

[rgarlington]

When I attempt to connect to my Azure SQL Managed Instance from Power Apps I receive the following error:

{
"error": {
"code": 504,
"source": "msmanaged-na.azure-apim.net",
"clientRequestId": "56d68453-94e6-4739-a5eb-09055f2b1d4b",
"message": "BadGateway",
"innerError": {
"status": 504,
"message": "Hosting Exception.\r\n inner exception: Timeout expired. The timeout period elapsed prior to completion of the operation.\r\nclientRequestId: 56d68453-94e6-4739-a5eb-09055f2b1d4b",
"error": {
"message": "Hosting Exception.\r\n inner exception: Timeout expired. The timeout period elapsed prior to completion of the operation."
},
"source": "sql-ncus.azconn-ncus.p.azurewebsites.net"
}
}
}

Any guidance you can provide is appreciated.