Reference Lookup for Customer Delivery Address

• Create a Table with fields CustAccount, LogisticsPostalAddress(int64)
• maintain relation :  Table.LogisticsPostalAddress == LogisticsPostalAddress.Recid.
• Create a new form and add above data source
• Under Design, Take NewControl stringedit for CustAccount 
• override lookup 

public void lookup()

{

    Query query = new Query();

    QueryBuildDataSource         qbds;

    QueryBuildRange                 queryBuildRange;

    SysTableLookup                   sysTableLookup;

    super();

    sysTableLookup         =  sysTableLookup::newParameters(tableNum(CustTable), this);

    sysTableLookup.addLookupfield(fieldnum(CustTable, AccountNum), true);

    qbds   = query.addDataSource(tablenum(CustTable));

    sysTableLookup.parmQuery(query);

    sysTableLookup.performFormLookup();

}

• then Again Take NewControl Reference group 
• Set Properties for reference group

• Override LookupReference 

public Common lookupReference()

{

    CustTable                   custTable;

    DirPartyTable               dirPartyTable;

    DirPartyLocation            dirPartyLocation;

    LogisticsPostalAddress      logisticsPostalAddress;

    SysReferenceTableLookup     sysRefTableLookup;

    Query                       lookupQuery = new Query();

    QueryBuildDataSource        lookupQueryDataSource;

    // Construct the SysRefTableLookup object

    sysRefTableLookup = SysReferenceTableLookup::newParameters(tableNum(LogisticsPostalAddress), ReferenceGroup);

    // Add the field list that will be displayed on the lookup form

   // You can Change/Add more fields in lookup based on your requirement.

    sysRefTableLookup.addLookupfield(fieldNum(LogisticsPostalAddress, Address));

    sysRefTableLookup.addLookupfield(fieldNum(LogisticsPostalAddress, Location));

    // Construct the query's data source

    lookupQueryDataSource = lookupQuery.addDataSource(tableNum(LogisticsPostalAddress));

 // To add multiple values in range.

    while select  Location from LogisticsPostalAddress

        join DirPartyLocation

        join dirPartyTable

        join custTable

            where logisticsPostalAddress.Location == dirPartyLocation.Location

                && dirPartyLocation.Party == custTable.Party

                && custTable.Party == DirPartyTable.RecId

                && custTable.AccountNum == CustomerName.valueStr()

    {

        // Add ranges to the query data source

        lookupQueryDataSource.addRange(fieldNum(LogisticsPostalAddress, Location)).value(queryValue(LogisticsPostalAddress.Location));

    }

    // Pass the query to the lookup object

    sysRefTableLookup.parmQuery(lookupQuery);

    return sysRefTableLookup.performFormLookup();

}

• Save and Run the Form