Symantec Installation Manager (SIM) returns the message: "Product Listing Signature Verification Failed"

Products

• Client Management Suite
• IT Management Suite

Issue/Introduction

When Launching Symantec Installation Manager (SIM) you Receive a Prompt Stating:

Product Listing Signature Verification Failed

The SIM log shows a message like this:

Signing certificate is not issued to Symantec.
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Date: 9/13/2023 1:00:50 PM, Tick Count: 612595219 (7.02:09:55.2190000), Size: 351 B
Process: SymantecInstallationManager (6356), Thread ID: 6, Module: SymantecInstallationManager.exe
Priority: 1, Source: Symantec.Installation.Model.XMLSigningManager.VerifyXmlFileSignature

Environment

ITMS 8.x

Cause

Using a new certificate

Resolution

You can safely click on Accept when prompted for the new certificate