DIXF - cross company Data import Ax 2012

//DIXF - cross company Data import Ax 2012
//Example for Customer Entity
Step -1
-->Add new field AXCompany to DMFCustomerEntity table
 --> set the properties as follows
  -->Mandatory - Yes
  -->AllowEdit - No
Step -2
-->Add new method existsAXCompany to CustTable table
 -->Code
  static server boolean existsInCompany(
    CustAccount _custAccount,
     DataAreaId _dataAreaId)
  {
       boolean found;
       changeCompany(_dataAreaId)
       {
           found = (select firstonly RecId from CustTable
                 index hint AccountIdx
                           where custTable.AccountNum == _custAccount).RecId != 0;
       }
       return found;
  }
Step -3
-->Customize method insertUpdate of class DMFCustomerEntityClass
 --> Code
public Common insertUpdate(Common _target, boolean _callInsertLogic = false, boolean _callValidateLogic = false)
{
    Common                              ret;
    CustTable                           custTable;
    boolean                             isUpdate;
    Set     permissionSet; //Added by Admin on 08 05 2016 - mod
    Boolean    existsAXCompany; //Added by Admin on 08 05 2016 - Mod
    if(target.RecId)
    {
        isUpdate = true;
    }
    //Added by Admin on 08 05 2016 - mod
     permissionSet = newSet(Types::Class)
     permissionSet.add(new OverwriteSystemFIeldsPermission());
     CodeAccessPermission::assertMultiple(permissionSet);
     if(_target.RecId)
     {
 custTable = _target as custTable;
 existsAXCompany = custTable::existsAXCompany(custTable.AccountNum,entity.AXCompany);
     }
     ChangeCompany(entity.AXCompany)
     {
 _target.overwriteSystemFields(true);
 _target.(filednum(common, dataAreaId)) == entity.AXCompany;
 if(_target.RecId && !existsAXCompany)
 {
  _target.RecId = 0;
 }
 ret = super(_target, _callerInsertLogic, _CallValidateLogic);
     }   
    //ret = super(_target, _callInsertLogic, _callValidateLogic);
    //End Code - Mod
    if (!this.parmIsCompare())
    {
        custTable = CustTable::find(entity.AccountNum);
        if (custTable && (entity.AccountBalance != 0) && !isUpdate) //check for customer/Accountbalance
        {
            this.generateBalance();
        }
    }
    return ret;
}
Step -4
-->Change the RunOn property of class DMFCustomerEntityClass to Server
Step -5
-->Create New processing group in DIXF
-->Select entities(customer entity) for processing group
-->Format as CSV
-->generate Source file
-->enter some sample customer data (Note: try to include  different AXCompany name)
-->Genrate source mapping
-->preview source file
-->get staging data
-->Copy data to target
Step 6
--> verify data in imported Legal entity customer data