The deadline for compliance with the EU's General Data Protection Regulation (GDPR) is May 25, 2018. Some B2B marketers believe the GDPR doesn't apply to them; others believe the data they collect and process isn't in scope. But business consumers are protected GDPR data subjects, and many B2B practices that collect and process their data must change. Although the law is often ambiguous and the degree of its enforcement remains unknown, the cost of noncompliance is severe. So B2B marketers must be aware and prepare.