Overview:

A user records a Call against an Account. This Call does not update the value of field Last Activity Date on the Territory Specific Field (TSF) record of the Account. The field remains blank or it keeps its current value.

Root Cause:

A Call must fulfill the criteria specified in Apex Class VOD_ProcessTSF to update the value of field Last Activity Date on the TSF (Territory Field) record.

Apex Class VOD_ProcessTSF can be opened under Setup --> App Setup --> Develop  --> Apex Classes.

The criteria is:

 // locate TSF record types and account record type name         
            Map<String, TSF_vod__c> newTsfByTerr = new Map<String, TSF_vod__c>();           
            for ( AggregateResult results :  [Select Account_vod__c, Territory_vod__c, Count(Id) totCalls, max(Call_Date_vod__c) mcalldate
                                     From Call2_vod__c where Account_vod__c in :acctIds and Territory_vod__c in :terrInTsf                        
                                     AND Status_vod__c != 'Planned_vod'
                                     AND Call_Date_vod__c = THIS_YEAR
                                     AND Call_Date_vod__c <= TODAY
                                     GROUP BY Account_vod__c, Territory_vod__c ]) {

Solution:

Thank you