❓ Issue with Office365 Send Email (V2) connector in Power Apps Code App (Invalid Recipients + Connection Duplication)

[Ayoubbendbyagc]

Hi everyone,

I’m facing an issue while using the Office365 – Send email (V2) connector in a Power Apps Code App developed and deployed using PAC CLI.

🔹 Context

Power Apps code app

Email sent via Office365 Send Email (V2) connector

Connection defined explicitly in the power config JSON (shared connection ID specified)

🔹 Problem

Even though the recipient email address is valid, the flow fails with the following error:

{
"status": 400,
"message": "One or more recipients are invalid.",
"error": {
"code": "ErrorInvalidRecipients",
"originalMessage": "At least one recipient is not valid., A message can't be sent because it contains no recipients."
},
"source": "office365-ne.azconn-ne-003.p.azurewebsites.net"
}

🔹 Payload used
{
"emailMessage": {
"To": "my.email@company.com",
"Subject": "Test Email",
"Body": "Email sent by Power Apps",
"Importance": "Normal"
}
}

The email address is correct and works in other apps / flows.

No dynamic value or empty variable is involved.

🔹 Additional Issue (Possibly Related)

Despite explicitly defining the shared Office365 Outlook connection ID in the power.config.json, the app keeps creating a new Outlook connection at runtime instead of reusing the existing one.

This makes me wonder if:

The connector is not resolving the connection properly

The payload is being altered / not passed as expected

Or the connection context is not correctly bound in code apps

❓ Questions

Is there a known issue with Office365 Send Email (V2) in Power Apps code apps?

Is the payload structure above fully supported in this context?

Could connection duplication cause the connector to execute with an uninitialized recipient?

Is there a recommended way to force reuse of a shared Outlook connection in PAC-based apps?

Any guidance or workaround would be highly appreciated.

Thanks in advance 🙏