Self-Managed

General

• Why users are seeing 'limit exceeded' errors?
• Guest Users Cannot Mention User Groups in Mattermost
• Fixing "Server Not Found" Error in Mattermost
• Getting Help with Your Mattermost User Account
• System console still displays old license after uploading a new one
• Mattermost GPG Key Expired
• See all 17 articles

CLI & MMCTL

• Troubleshooting: Migrating a User from GitLab OAuth to SAML in Mattermost
• Troubleshooting Guide: Delays in Managing Personal Access Tokens in Mattermost
• Delete old archived channels

Licensing

• Eligibility for Mattermost Staging/Testing Licenses
• How to Resolve the "Invalid Signature" Error in Mattermost when requesting a Trial License
• Updating a Mattermost Enterprise License

Infrastructure and Monitoring

• Mattermost Stops Working After Stopping MySQL Post-Migration to PostgreSQL
• Does Mattermost Support MariaDB?
• Troubleshooting Mattermost Kubernetes Deployment Errors in Air-Gapped Environments
• Configuring a Socket-Based Database Connection for Mattermost (Self-Managed)
• Resolving Insufficient Permission Error When Deleting an AWS OpenSearch Index
• Resolving Image Display Issues in Mattermost Due to Image Proxy Setting
• See all 21 articles

SAML Integration

• SAML SSO with Entra ID: Resolving Signature Verification Errors
• Solving "Duplicate Username" SAML Login Warning in Mattermost

AD and LDAP Integration

• LDAP Configuration Troubleshooting in Mattermost (Bind & Sync)
• Using ldapsearch
• LDAP Deactivates Users Unexpectedly
• LDAP or SAML Error: "A user with this username already exists"
• Error After Upgrade: SAML Missing the NameID Element

Plugins

• Handling CSRF Header Check Issues
• Playbooks: Can't start new runs
• Plugins missing from the System Console (Self-Hosted)
• Installing a Plugin Failed with 'Received Invalid Response from the Server'