How to fix - Unable to update configuration settings in PSC Setup

Published on October 29, 2026 QuoteX

FAQ: Unable to Update Configuration Settings in PSC Setup

This FAQ explains why you may be unable to save configuration changes on the PSC Setup page and how to fix it.

Quick answer: Make sure the user has the PSC Admin permission set and the Customize Application system permission.

Q1. What issue will I see?

Changes made on the PSC Setup page cannot be saved, and the configuration settings fail to update.

Example of the PSC Setup configuration issue.

Q2. What should I check first?

Make sure the user has the PSC Admin permission set assigned. It grants access to the related custom settings.

PSC Admin permission set assigned to the user.

Q3. Why does it still fail with PSC Admin assigned?

The PSC Setup page performs DML operations on custom settings. To create, update or delete custom settings (via Apex, Execute Anonymous or REST API), the running user must have the Customize Application system permission in their Profile or Permission Set.

Note: Without Customize Application, saving custom setting changes will fail.

Q4. How do I fix it?

Fix: Grant the Customize Application system permission to the user through their Profile or a Permission Set, then retry saving in PSC Setup.

Knowledge Article Number: KA-00488