Python SDK PUT for Web Messaging channel config hits 400 schema validation error on message type matrix

Problem
The genesyscloud_python_sdk throws a 400 when pushing the channel config payload because the schema rejects the message type matrix. The validation pipeline keeps timing out. Not sure why the SSL check blocks the PUT.

Code

from genesyscloud_python_sdk import GenesysCloudClient
client = GenesysCloudClient(oauth_client_id="...", oauth_client_secret="...")
messaging = client.platform_api.messaging_api
config_payload = {
 "channel_id": "msg-chn-8492",
 "message_type_matrix": {"text": "allowed", "file": "restricted"},
 "delivery_preference_directive": "async_batch",
 "websocket_pool_auto_allocate": True,
 "ssl_validation_enabled": True,
 "rate_limit_pipeline": "strict"
}
response = messaging.put_messaging_channel_config(channel_id="msg-chn-8492", body=config_payload)

Error
genesyscloud_python_sdk.exceptions.ApiException: (400) Config schema validation failed. Maximum channel limit exceeded for this org tier. Format verification rejected the matrix payload.

Question
The genesyscloud_python_sdk requires the exact JSON structure for the PUT operation. How do I adjust the config payload to bypass the infrastructure constraint check without hitting the max channel limit? The webhook callback for external sync isn’t firing because the atomic update rolls back. Audit log generation is stuck.

  • Python 3.10
  • genesyscloud_python_sdk 12.4.0
  • Genesys Cloud EU1 org
  • Custom channel configurer script
  • Atomic PUT with format verification enabled