Slack integration: issue assingment and resolving not working when Workspace is added to EU and US.

[rodolfoBee]

Environment

SaaS (https://sentry.io/)

Steps to Reproduce

1. Create two sentry orgs: one in US and one in the EU
2. Add the slack integration to the US org
3. Add the slack integration to the EU org (use the same workspace in both)
4. Create an issue alert rule in either org
5. Trigger the rule with a test error event.

Expected Result

Being able to assign the issue to a user or resolve it in Slack.

Actual Result

Issue assignment does not work

• not assigning issue to anyone in the EU org
• not finding users in the US org

"Resolve" button has no effect in the EU org. I was able to resolve an issue from the US organisation.

Product Area

Settings - Integrations

Link

No response

DSN

No response

Version

No response

[getsantry]

Assigning to @getsentry/support for routing ⏲️

[getsantry]

Routing to @getsentry/product-owners-settings-integrations for triage ⏲️

[Dhrumil-Sentry]

Thanks for this bug report - We'll investigate this