As an admin of a group using Teams free, you may be asked to help people in the group get copies of, remove, or manage their personal data that's used in Teams free. Under the General Data Protection Regulation (GDPR), these are called “Data Subject Requests.” Here are some resources to help:
For an overview of GDPR topics and information about how Microsoft products help you comply with the GDPR, visit the GDPR section in the Microsoft Trust Center.
For an introduction to Data Subject Requests, see Office 365 Data Subject Requests for the GDPR.
For support responding to a Data Subject Request for Customer Data, contact Microsoft Support for business products.