Here's a snippet you can use to communicate your customers that you share their Personal Data with FirstOfficer. This is required by GDPR if you have any EU customers. Please feel free to modify it to fit the way you present things.
Note: This page is not intended to provide legal advice. We recommend you consult your own legal counsel to check that whatever you add to your policy documents matches your needs.
We use FirstOfficer as a third party financial analytics service, but we only share with them information that is required for the service offered. We contractually bind them to keep any information we share with them as confidential and to process Personal Data only according to our instructions.
FirstOfficer has access to the invoices we have sent to you so that it can provide us important financial metrics, some of them specific to you and linked to your personal information such as your name and/or email.