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3804152 - SAP Cloud ALM Webhook connectivity failure after platform security hardening (TLS / EMS Enforcement)

Symptom

  • Outbound webhook connections from SAP Cloud ALM to external systems stop working after July 24 2026.
  • "TLS handshake failure - EMS not enabled" error when SAP Cloud ALM attempts to send event data (e.g. Event Situations) to an external software via External API Management.
  • Scenarios with TLS errors: 
    • Webhook subscriptions of type "ServiceNow" in CALM – Operations routing through the Megaclite middleware layer.
    • Connectivity to external receivers (e.g., CRIBL, BHOM, or any middleware) exposed via an AWS Classic Load Balancer (CLB) or any endpoint that supports only TLS 1.2 without EMS (Extended Master Secret).


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Environment

  • SAP Cloud ALM
  • SAP BTP cockpit
  • External software APIs

Product

SAP Cloud ALM 1.0

Keywords

KBA , SV-CLM-API , SAP Cloud ALM External API , Problem

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