Note that lack of successful association is not considered an error. It is up to the user to make sure that the electrical and physical designs are consistent, and that terminals get placed correctly.
Logging of these operations can be enabled from the Logging Options panel from the Logging button in the Help Menu. The Grouping/Extraction/Association group in the lower half of the panel contains four check boxes: Group, Extract, Assoc, and Verbose. Checking any or all of the first three will enable logging of the checked operation, producing log files named group.log, extract.log, and associate.log in the log files area. If the Verbose box is checked, the files will contain additional information. These (and all) log files are accessible through the Log Files button in the Help Menu.
The log files may be helpful to the user or to Whiteley Research in resolving problems. The formats are not documented, but are intended to be reasonably suggestive if not self-explanatory to an advanced user.