Article 30(1) GDPR generally requires controllers to keep a record of all processing activities under their responsibility. The entry starts with the specific activity, not the name of a department or application. “CRM” or “human resources” does not yet explain which data are processed for which purpose.
For controllers, Article 30(1) GDPR lists, among other things, contact details, purposes, categories of individuals and personal data, recipients and any transfers to third countries or international organisations. Where possible, the record should also include intended retention periods and a general description of the technical and organisational measures under Article 32(1) GDPR.
The record must be kept in writing, including electronically, and made available to the supervisory authority on request. It is therefore not a marketing text or a general privacy policy, but a traceable overview of actual processing activities.