You can keep teams on their platform while allowing data to be shared bi-directionally with other groups. This guide explains why a ServiceNow Integration with Salesforce is beneficial and how to choose the right tool to make it happen. The article then describes how such an integration can be configured and implemented from start to finish.
Read more here: https://www.awsquality.com/step-by-step-servicenow-integration-with-salesforce/