def register_customer(request, group=None):
    post_data = request.POST
    data_source = []
    existing_customer = False
    product_obj = models.ProductData.objects.filter(product_id=post_data['customer-vin'])
    if not post_data['customer-id']:
        temp_customer_id = utils.generate_temp_id(TEMP_ID_PREFIX)
    else:
        temp_customer_id = post_data['customer-id']
        existing_customer = True
    data_source.append(utils.create_purchase_feed_data(post_data, product_obj[0], temp_customer_id))

    check_with_invoice_date = utils.subtract_dates(data_source[0]['product_purchase_date'], product_obj[0].invoice_date)    
    check_with_today_date = utils.subtract_dates(data_source[0]['product_purchase_date'], datetime.datetime.now())
    if not existing_customer and check_with_invoice_date.days < 0 or check_with_today_date.days > 0:
        message = "Product purchase date should be between {0} and {1}".\
                format((product_obj[0].invoice_date).strftime("%d-%m-%Y"),(datetime.datetime.now()).strftime("%d-%m-%Y"))
        logger.info('[Temporary_cust_registration]:: {0} Entered date is: {1}'.format(message, str(data_source[0]['product_purchase_date'])))
        return json.dumps({"message": message})

    try:
        with transaction.atomic():
            customer_obj = models.CustomerTempRegistration.objects.filter(temp_customer_id = temp_customer_id)
            if customer_obj:
                customer_obj = customer_obj[0]
                if customer_obj.new_number != data_source[0]['customer_phone_number']:
                    update_count = models.Constant.objects.get(constant_name='mobile_number_update_count').constant_value
                    if customer_obj.mobile_number_update_count >= int(update_count) and group[0] != Roles.SDMANAGERS:
                        customer_update = models.CustomerUpdateFailure(product_id = product_obj[0],
                                                                       customer_name = data_source[0]['customer_name'],
                                                                       customer_id = customer_obj.temp_customer_id,
                                                                       updated_by = "dealer-"+ str(request.user),
                                                                       old_number = customer_obj.new_number,
                                                                       new_number = data_source[0]['customer_phone_number'])
                        customer_update.save()
                        message = get_template('PHONE_NUMBER_UPDATE_COUNT_EXCEEDED')
                        return json.dumps({'message' : message})

                    if models.UserProfile.objects.filter(phone_number=data_source[0]['customer_phone_number']):
                        message = get_template('FAILED_UPDATE_PHONE_NUMBER').format(phone_number=data_source[0]['customer_phone_number'])
                        return json.dumps({'message': message})
                    old_number = customer_obj.new_number
                    customer_obj.new_number = data_source[0]['customer_phone_number']
                    customer_obj.product_data = product_obj[0]
                    customer_obj.sent_to_sap = False
                    customer_obj.dealer_asc_id = str(request.user)
                    customer_obj.mobile_number_update_count+=1
                    update_history = models.CustomerUpdateHistory(temp_customer=customer_obj,
                                                                  updated_field='Phone Number',
                                                                  old_value=old_number,
                                                                  new_value=customer_obj.new_number,
                                                                  email_flag=False)
                    update_history.save()
                    message = get_template('CUSTOMER_MOBILE_NUMBER_UPDATE').format(customer_name=customer_obj.new_customer_name, new_number=customer_obj.new_number)
                    for phone_number in [customer_obj.new_number, old_number]:
                        phone_number = utils.get_phone_number_format(phone_number)
                        sms_log(settings.BRAND, receiver=phone_number, action=AUDIT_ACTION, message=message)
                        send_job_to_queue(send_customer_phone_number_update_message, {"phone_number":phone_number, "message":message, "sms_client":settings.SMS_CLIENT})
                            
                    if models.UserProfile.objects.filter(user__groups__name=Roles.BRANDMANAGERS).exists():
                        groups = utils.stringify_groups(request.user)
                        if Roles.ASCS in groups:
                            dealer_asc_id = "asc : " + customer_obj.dealer_asc_id
                        elif Roles.DEALERS in groups:
                            dealer_asc_id = "dealer : " + customer_obj.dealer_asc_id
                        else :
                            dealer_asc_id = "manager : " + customer_obj.dealer_asc_id
                        
                        message = get_template('CUSTOMER_PHONE_NUMBER_UPDATE').format(customer_id=customer_obj.temp_customer_id, old_number=old_number, 
                                                                                  new_number=customer_obj.new_number, dealer_asc_id=dealer_asc_id)
                        managers = models.UserProfile.objects.filter(user__groups__name=Roles.BRANDMANAGERS)
                        for manager in managers:
                            phone_number = utils.get_phone_number_format(manager.phone_number)
                            sms_log(settings.BRAND, receiver=phone_number, action=AUDIT_ACTION, message=message)
                            send_job_to_queue(send_customer_phone_number_update_message, {"phone_number":phone_number, "message":message, "sms_client":settings.SMS_CLIENT})

            else:
                if models.UserProfile.objects.filter(phone_number=data_source[0]['customer_phone_number']):
                    message = get_template('FAILED_UPDATE_PHONE_NUMBER').format(phone_number=data_source[0]['customer_phone_number'])
                    return json.dumps({'message': message})
                customer_obj = models.CustomerTempRegistration(product_data=product_obj[0], 
                                                               new_customer_name = data_source[0]['customer_name'],
                                                               new_number = data_source[0]['customer_phone_number'],
                                                               product_purchase_date = data_source[0]['product_purchase_date'],
                                                               temp_customer_id = temp_customer_id,
                                                               dealer_asc_id = str(request.user))
            customer_obj.save()
            logger.info('[Temporary_cust_registration]:: Initiating purchase feed')
            feed_remark = FeedLogWithRemark(len(data_source),
                                                feed_type='Purchase Feed',
                                                action='Received', status=True)
            sap_obj = SAPFeed()
            feed_response = sap_obj.import_to_db(feed_type='purchase', data_source=data_source, feed_remark=feed_remark)
            if feed_response.failed_feeds > 0:
                logger.info('[Temporary_cust_registration]:: ' + json.dumps(feed_response.remarks))
                raise ValueError('purchase feed failed!')
            logger.info('[Temporary_cust_registration]:: purchase feed completed')
    except Exception as ex: 
        logger.info(ex)

        return HttpResponseBadRequest()
    if existing_customer:
        return json.dumps({'message': CUST_UPDATE_SUCCESS})
    return json.dumps({'message': CUST_REGISTER_SUCCESS + temp_customer_id})