Use this article if you see a Sync error: Invalid grant when syncing a new employee from your Payroll platform. It explains how to resolve the authentication issue with the Payroll platform integration.
You may encounter a Sync error: Invalid grant when syncing a new employee from your Payroll platform. To resolve this issue, check if there are any authentication issues between the HR platform and the integration with the Payroll platform. Disconnect the Payroll platform integration and reconnect to resolve this.