It is highly recommended not to connect the same Salesforce account more than once for the same user. Doing so can cause your integration to break and stop your automated workflows.
The issue stems from a Salesforce security feature called OAuth Refresh Token Rotation. When your application connects to Salesforce, it uses a "refresh token" to keep the connection alive. These tokens are strictly single-use.
If the same account is connected more than once, both connections may attempt to refresh their access tokens in parallel.
Solution: If you are experiencing disconnects or have duplicate connections, follow these steps:
Remove the duplicate: Go to Connected accounts settings and delete one of the duplicate Salesforce connections.
Re-authenticate: Reconnect the remaining Salesforce connection to complete a new flow and generate a fresh, valid token.
Verify workflows: Double-check all workflows, mappings, and automations related to the Salesforce application to ensure they are tied to the active connection and functioning correctly.