Loading
Upcoming Mandatory Changes to Public Key Infrastructure (PKI)Read More
Salesforce Enforces New Security Requirements in Summer 2026Read More

Named Credential Connections Created via BYOC Fail at Runtime in High Scale Flow (HSF) Environments

Publish Date: Jun 15, 2026
Description

Issue Summary: Named Credential connections created via BYOC (Bring Your Own Credential) fail at runtime in HSF (High Scale Flow) environments. Connection creation succeeds in the UI, but flows fail when executed.
Version(s) Affected: 260,262

Steps to Reproduce:
When using Bring Your Own Credential (BYOC) to connect a MuleSoft connector with an existing Salesforce Named Credential in a High Scale Flow environment, the connection is created successfully but fails at runtime with no clear error message. This issue does not affect connections created through the standard Connection Management flow.

Known Issue Link: https://help.salesforce.com/s/issue?id=a02Ka00000mHD3W

 

 

Resolution

Workaround:
Use the standard authentication method (Connection Management-created credentials) instead of BYOC Named Credentials when running flows in HSF. Standard auth connections work as expected.

Additional Resources

Affected Connectors: All connectors using BYOC in HSF (NetSuite is the primary impacted connector as it relies heavily on Named Credentials)

Impact: Customers using BYOC with HSF will see runtime failures. This does not block standard auth users

Knowledge Article Number

005387024

 
Loading
Salesforce Help | Article