i'mport JavaScript SDK 1.1.5 and Earlier Versions


<script src="https://cdn.iamport.kr/js/iamport.payment-1.1.5.js" type="text/javascript"></script>
Deployed on 2017-04-03
  • Added function to redirect to m_redirect_url when error occurs before starting the payment process after calling IMP.request_pay(param) in mobile.
Reasons for failure before starting payment process
  • Reusing an already used merchant_uid (Order ID) for payment.
  • Invalid payment request parameter.
Reasons for failure after starting payment process
  • Credit card suspended or limit exceeded.
  • Exceeded number of password errors.


<script src="https://cdn.iamport.kr/js/iamport.payment-1.1.4.js" type="text/javascript"></script>
Deployed on 2016-11-14
  • Added Agency-tier feature: IMP.agency(Merchant ID, Tier Code) function
  • Added SMS mobile identity verification feature: IMP.certification() function


<script src="https://cdn.iamport.kr/js/iamport.payment-1.1.3.js" type="text/javascript"></script>
Deployed on 2016-07-13
  • Code refactored and performance enhanced version of 1.1.2 version.


<script src="https://cdn.iamport.kr/js/iamport.payment-1.1.2.js" type="text/javascript"></script>
Deployed on 2016-03-09
  • Enhanced method of calling multiple PG settings.


<script src="https://cdn.iamport.kr/js/iamport.payment-1.1.1.js" type="text/javascript"></script>
Deployed on 2016-02-19
  • Extended PG parameter value to allow for PG + MID combination (pg : '{PG}.{MID}').


<script src="https://cdn.iamport.kr/js/iamport.payment-1.1.0.js" type="text/javascript"></script>
Deployed on 2016-01-19
  • Added pg parameter to allow an account to use multiple PG modules (pg : '{PG}')


<script src="https://cdn.iamport.kr/js/iamport.payment-1.0.0.js" type="text/javascript"></script>
Deployed on 2014-10-24
  • Initial stable release (Unversioned release, same as iamport.payment-1.0.0.js)


<script src="https://cdn.iamport.kr/js/iamport.payment.js" type="text/javascript"></script>