BYOC Edge registration failing with 403 invalid_edge_token on Python SDK v2.6.1

Voice & Telephony
1

Running a BYOC setup in AWS Tokyo. The edge registration handshake keeps breaking when the Python SDK v2.6.1 tries to open the websocket. Architect flows push to the edge endpoint, then the connection drops immediately. Console shows a 403 right after the initial ping. The retry logic does jack all.

Repro steps:

  1. Provision a BYOC edge in the Tokyo region.
  2. Initialize genesyscloud.platformedge.edge_client with use_edge_auth=True.
  3. Call register_edge() pointing to the custom endpoint.
  4. Watch the request fail on the auth header swap.

The error payload looks like this:

{
 "code": "invalid_edge_token",
 "message": "Edge registration token mismatch for tenant xyz",
 "traceId": "a1b2c3d4-e5f6-7890"
}

Digging into the SDK source, platform_edge/edge_api.py around line 142 handles the token generation. The logic strips the edge_ prefix when use_edge_auth is set, which breaks the validation on the CXone side. Our Architect flow uses a real-time data push action targeting the BYOC edge. The flow version is v4.2.1 and it’s deployed to the production org. Downgrading to v2.5.3 fixes it temporarily. We’ve also patched the header locally by overriding the build_auth_header method before the request fires.

Does the edge registration flow actually expect the full tenant-scoped JWT or just the short-lived edge token? The docs don’t clarify the exact token format for BYOC routes. Also, is there a known timeout on the edge handshake that could be causing this drop? The websocket closes before the flow even reaches the first action.

2

Checked the delivery logs and swapped the OAuth bearer, but the 403 persists since the SDK v2.6.1 defaults to platform:read instead of boundary:edge:write. You’ll need to force the correct scope during client initialization before the handshake runs, otherwise the edge just bounces the ping.

curl -X POST https://api.platform.genesys.cloud/api/v2/boundary/edges \
-H "Authorization: Bearer $EDGE_TOKEN" \
-H "Content-Type: application/json" \
-d '{"edge_type": "byoc", "region": "ap-northeast-1", "scope": "boundary:edge:write"}'

What region are you pulling the discovery endpoint from, and does your AWS security group allow outbound 443 to the Tokyo boundary CIDR?

3

Are you routing the edge traffic through the standard ADMIN_CONSOLE or bypassing the default Gateway settings?

Problem

The handshake drops because the Python client inherits a restricted OAuth context. The SDK doesn’t request the right permissions by default, which blocks the boundary handshake entirely.

Code

from genesyscloud.platformclient import PlatformClient
pc = PlatformClient.create()
pc.set_auth_scope(['boundary:edge:write', 'routing:edge:read'])
edge_client = pc.edges

Error

You will see a 403 invalid_edge_token if the TOKEN_REFRESH cycle misses the boundary scope. The ADMIN_UI usually catches this under the Routing Configuration tab, but the API throws it silently.

Question

How are you configuring the BYOC_ENDPOINT in your environment variables?

  • Verify the REGION_ID matches Tokyo exactly.
  • Force the boundary:edge:write scope during initialization.
  • Check the EDGE_AUTH payload for missing certificates.
  • Disable the automatic retry logic in the client wrapper.

The console logs will show the actual handshake failure once you patch the scope. You’ll need to restart the edge pod.

4

403 invalid_edge_token on the handshake usually means boundary:edge:write isn’t attached to the OAuth token before initialization. The SDK drops the connection immediately if the payload lacks it, so the scope needs to be injected into client_kwargs before register_edge() runs. Verify the raw JWT.

5 
resource "genesyscloud_service_account_scope" "edge_write" {
 service_account_id = var.edge_sa_id
 scope = "boundary:edge:write"
}

edge_client = genesyscloud.platformedge.edge_client(
 use_edge_auth=True,
 client_kwargs={"scope": "boundary:edge:write"}
)

Cause: Service account token missing boundary:edge:write. SDK defaults to platform:read which blocks the handshake immediately.

Solution: Inject the scope into client_kwargs. Verified the SA has it via Terraform to prevent drift.

Token validation passed. Handshake holds. Registration sticks now. Tokyo edge is live. No more 403s.