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OIC Integration Triggered by UltraMsg Webhook but Returns 401 Unauthorized – How to Resolve?

in Integration 4 comments

Hi Everyone,

I have built a WhatsApp integration using UltraMsg API and Oracle Integration Cloud (OIC). Outbound messaging is working fine, but I am facing a 401 Unauthorized issue on the inbound callback integration. Here is my exact setup:

Integration 1 – Outbound (Send Message)

  • Type: App Driven Orchestration
  • Trigger: REST (Basic Auth / OAuth 2.0)
  • Purpose: Send WhatsApp messages to users via UltraMsg
  • Status: Working fine

Integration 2 – Inbound Callback (Receive User Reply)

  • Type: App Driven Orchestration
  • Trigger: REST (Basic Auth / OAuth 2.0)
  • Purpose: Receive incoming WhatsApp replies from UltraMsg via Webhook
  • Status: 401 Unauthorized

UltraMsg Webhook URL Format:

https://username:password@<OIC-Integration-Endpoint-URL>

Observations:

  • With credentials in the URL, UltraMsg
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