Connection Self-Checks and Duplicate Prevention

1. Overview & Purpose

The connection endpoint explicitly rejects self-connections and existing connections.

2. Requirements & Setup

Provide a valid sender profile and target profile.

3. Step-by-Step Workflow

1. Confirm the sender and target IDs are different.
2. Check whether a connection already exists.
3. Send the request only when no existing connection blocks it.
4. Handle the returned error instead of retrying the same invalid request.

4. Rules & Troubleshooting

The API returns a failure for self-connections and duplicate existing connections.

5. Verification & Next Steps

Treat these responses as validation outcomes, not transient failures.