Hi Team,

The Territory Name not being auto-updated on Opportunity from Account in Sandbox and Production.

Ideally, when new Opportunity is created , it should automatically be assigned with the Territory Name from the Account also if 'Run Opportunity Filter' button is being used on Territory Model, it should update the Territory Name on Opportunity but that is something not happening. Details given below - 

1. Territory Name is not automatically updated on the newly created Opportunities in both Production and Sandbox.
2. ‘Run Opportunity Filter’ button on Territory Model doesn’t assign the Territory Name on the Opportunities in  Production Org but on Sandbox.

PS. We have Enabled Filter-Based Opportunity Territory Assignment and using the name OppTerritoryAssignDefaultLogicFilter and below is the code used in both orgs-

/*** Apex version of the default logic.
* If opportunity's assigned account is assigned to
*  Case 1: 0 territories in active model
*            then set territory2Id = null
*  Case 2: 1 territory in active model
*            then set territory2Id = account's territory2Id
*  Case 3: 2 or more territories in active model
*            then set territory2Id = account's territory2Id that is of highest priority.
*            But if multiple territories have same highest priority, then set territory2Id = null 
*/
global class OppTerritoryAssignDefaultLogicFilter implements TerritoryMgmt.OpportunityTerritory2AssignmentFilter { 
    /**
     * No-arg constructor.
     */ 
     global OppTerritoryAssignDefaultLogicFilter() {}

     /**
      * Get mapping of opportunity to territory2Id. The incoming list of opportunityIds contains only those with IsExcludedFromTerritory2Filter=false.
      * If territory2Id = null in result map, clear the opportunity.territory2Id if set.
      * If opportunity is not present in result map, its territory2Id remains intact.
      */
    global Map<Id,Id> getOpportunityTerritory2Assignments(List<Id> opportunityIds) { 
        Map<Id, Id> OppIdTerritoryIdResult = new Map<Id, Id>();

        // Get the active territory model Id
        Id activeModelId = getActiveModelId();

        if(activeModelId != null){
            List<Opportunity> opportunities =
              [Select Id, AccountId, Territory2Id from Opportunity where Id IN :opportunityIds];
            Set<Id> accountIds = new Set<Id>();
            // Create set of parent accountIds
            for(Opportunity opp:opportunities){
                if(opp.AccountId != null){
                    accountIds.add(opp.AccountId);
                    }
                }

                Map<Id,Territory2Priority> accountMaxPriorityTerritory = getAccountMaxPriorityTerritory(activeModelId, accountIds);

            // For each opportunity, assign the highest priority territory if there is no conflict, else assign null.
            for(Opportunity opp: opportunities){
               Territory2Priority tp = accountMaxPriorityTerritory.get(opp.AccountId);
               // Assign highest priority territory if there is only 1.
              if((tp != null) && (tp.moreTerritoriesAtPriority == false) && (tp.territory2Id != opp.Territory2Id)){
                   OppIdTerritoryIdResult.put(opp.Id, tp.territory2Id);
               }else{
                   OppIdTerritoryIdResult.put(opp.Id, null);
               }
            }
        }
        return OppIdTerritoryIdResult;
    }
    
    /**
      * Query assigned territoryIds in active model for given accountIds.
      * Create a map of accountId to max priority territory.
      */
     @TestVisible private Map<Id,Territory2Priority> getAccountMaxPriorityTerritory(Id activeModelId, Set<Id> accountIds){
        Map<Id,Territory2Priority> accountMaxPriorityTerritory = new Map<Id,Territory2Priority>();
        for(ObjectTerritory2Association ota:[Select ObjectId, Territory2Id, Territory2.Territory2Type.Priority from ObjectTerritory2Association where objectId IN :accountIds and Territory2.Territory2ModelId = :activeModelId]){
            Territory2Priority tp = accountMaxPriorityTerritory.get(ota.ObjectId);

            if((tp == null) || (ota.Territory2.Territory2Type.Priority > tp.priority)){
                // If this is the first territory examined for account or it has greater priority than current highest priority territory, then set this as new highest priority territory.
                tp = new Territory2Priority(ota.Territory2Id,ota.Territory2.Territory2Type.priority,false);
            }else if(ota.Territory2.Territory2Type.priority == tp.priority){
                // The priority of current highest territory is same as this, so set moreTerritoriesAtPriority to indicate multiple highest priority territories seen so far.
                tp.moreTerritoriesAtPriority = true;
            }
            
            accountMaxPriorityTerritory.put(ota.ObjectId, tp);
        }
        return accountMaxPriorityTerritory;
    }


    /**
     * Get the Id of the Active Territory Model.
     * If none exists, return null.
     */
    @TestVisible private Id getActiveModelId() {
        List<Territory2Model> models = [Select Id from Territory2Model where State = 'Active'];
        Id activeModelId = null;
        if(models.size() == 1){
            activeModelId = models.get(0).Id;
        }

        return activeModelId;
    }

    /**
    * Helper class to help capture territory2Id, its priority, and whether there are more territories with same priority assigned to the account.
    */
    @TestVisible private class Territory2Priority {
        public Id territory2Id { get; set; }
        public Integer priority { get; set; }
        public Boolean moreTerritoriesAtPriority { get; set; }
        
        @TestVisible
        Territory2Priority(Id territory2Id, Integer priority, Boolean moreTerritoriesAtPriority){
            this.territory2Id = territory2Id;
            this.priority = priority;
            this.moreTerritoriesAtPriority = moreTerritoriesAtPriority;
        }
    }
}

Can anyone help me out here please?

Thanks!