As part of Salesforce Summer '26 security enhancements, we have implemented additional security measures in the Mass File Migrate app, including support for PKCE (Proof Key for Code Exchange) in the OAuth authorization flow. Due to these security updates, users may be required to re-authorize the application and may see the Authorize button again on the Mass File Migrate tab. This is expected behavior and helps ensure secure access between Salesforce and the connected system. Once authorization is completed successfully, you can continue using the application as usual.
What security enhancements are added to the Mass File Migrate app in Summer'26? (Why am I seeing the Authorize button again on the MFM tab?) Print
Modified on: Wed, 10 Jun, 2026 at 4:49 PM
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