MC1282562 — Microsoft Purview eDiscovery: Naming and description fields will restrict certain special characters

Microsoft Purview eDiscovery will restrict special characters (+, =, @, /, *) in naming and description fields starting May 15, 2026. Existing entities remain unaffected unless edited. Rollout is paused; updates will be communicated later. No admin action is required, but users should be informed and naming conventions updated.