$vendorAssignedToField->name = 'assigned_user_id';
    $vendorAssignedToField->label = 'Assigned To';
    $vendorAssignedToField->table = 'vtiger_crmentity';
    $vendorAssignedToField->column = 'smownerid';
    $vendorAssignedToField->uitype = 53;
    $vendorAssignedToField->typeofdata = 'V~M';
    $vendorBlock->addField($vendorAssignedToField);
    $vendorAllFilter = Vtiger_Filter::getInstance('All', $vendorInstance);
    $vendorAllFilter->addField($vendorAssignedToField, 5);
}
// Allow Sharing access and role-based security for Vendors
Vtiger_Access::deleteSharing($vendorInstance);
Vtiger_Access::initSharing($vendorInstance);
Vtiger_Access::allowSharing($vendorInstance);
Vtiger_Access::setDefaultSharing($vendorInstance);
Vtiger_Module::syncfile();
// Add Email Opt-out for Leads
$leadsInstance = Vtiger_Module::getInstance('Leads');
$leadsOptOutField = Vtiger_Field::getInstance('emailoptout', $leadsInstance);
if (!$leadsOptOutField) {
    $leadsOptOutField = new Vtiger_Field();
    $leadsOptOutField->name = 'emailoptout';
    $leadsOptOutField->label = 'Email Opt Out';
    $leadsOptOutField->table = 'vtiger_leaddetails';
    $leadsOptOutField->column = $leadsOptOutField->name;
    $leadsOptOutField->columntype = 'VARCHAR(3)';
    $leadsOptOutField->uitype = 56;
    $leadsOptOutField->typeofdata = 'C~O';
    $leadsInformationBlock = Vtiger_Block::getInstance('LBL_LEAD_INFORMATION', $leadsInstance);
    $leadsInformationBlock->addField($leadsOptOutField);
    Migration_Index_View::ExecuteQuery('UPDATE vtiger_leaddetails SET emailoptout=0 WHERE emailoptout IS NULL', array());