Hi @Brian,
- What Mattermost server version are you on?
- What OS and version are you on?
- What device are you seeing this on?
- Do you have access to the server logs and configuration, and can you share them?
- What IdP are you using?
- Can you list the attributes that you have on your IdP and in the Mattermost configuration?
- Do you know which identity provider you used to connect SAML to Mattermost?
- If you set it up, can you confirm all attributes, including Email Attribute and Username Attribute, are correct in both the Identity Provider configuration and in System Console > SAML, and that they match? It can also be a misspelled attribute like
username
is not the same asUsername
norFirstname
equals toFirstName
.