dysfunctions when using SSO

[makayabou]

I'm using Nextcloud with SSO enabled by OpenId Connect Login app, connected to a keycloak instance.

If I create a conversation with an internal user (not on Keycloak SSO), I can bridge it to my mattermost instance, and in works immediatly in both directions.

If I create a conversation with a Keycloak user with nextcloud Openid, things are harder:

• I need to had the personal token from Mattermost in config.toml . found the solution here
• it takes a long time(like 2-3 minutes) for first synchronisation
• above all: In Mattermost I can reveive messages written in Nextcloud talk, but messages are not reproduced other way around, from Mattermost to Nextcloud.

Do you know how I can have 2-way sync with SSO on Nextcloud?

Thanks for your great work !