Dynamic CRM Data Audit
In Microsoft Dynamics CRM 2011, now you can allow auditing on the field-by-field basis, where Microsoft Dynamics CRM catches every modification on the record. The audit feature catches the time and date on the changes, combined with the new and old values on the particular fields. The capability to audit modifications to information is a fairly, and frequently important element of line of business applications.
Once it is allowed, any modifications can be tracked: