The two areas where third-party data enrichment tools can add the most value are:

B. Monitoring changes and updates
External enrichment services can automatically detect and refresh key account and contact data (for example, company size, industry, or email validity) on an ongoing basis, ensuring your records stay current.

D. Naming and formatting
Data enrichment tools often include address standardization, phone formatting, and company name normalization, so your data is consistent and error-free across all records.

Why Not the Others:
A. Roles and record ownership
This is an internal governance practice; enrichment tools don’t assign user roles or ownership.

C. Validation rules
While critical for data quality, validation rules are built in Salesforce and enforce standards at entry time—they’re not part of external enrichment.