I have a similar question like PayPal PayFlow Pro with Transparent Redirect - User Authentication Failed Issues / Documentation
Problem occurs on step 5
Secure token request for the transparent redirect (https://pilot-payflowpro.paypal.com)
PARTNER=PayPal
&VENDOR=myAuthUserName
&USER=myAuthUserName
&PWD=myPassword
&CREATESECURETOKEN=Y
&SECURETOKENID=f6153d8b0c6c42c789e61daa7daa55b1
&SILENTTRAN=TRUE
&TRXTYPE=A
&CURRENCY=USD
&AMT=20
&RETURNURL=myReturnURL
&CANCELURL=myCancelURL
&ERRORURL=myErrorURL
Response:
RESULT=0&RESPMSG=Approved&SECURETOKEN=9u5CH4WMKOkey9pVTgSJBwAqG&SECURETOKENID=f6153d8b0c6c42c789e61daa7daa55b1
So it seems like the account authenticates correctly.
Next I send post to https://pilot-payflowlink.paypal.com with params
SECURETOKEN=9u5CH4WMKOkey9pVTgSJBwAqG
&SECURETOKENID=f6153d8b0c6c42c789e61daa7daa55b1
&ACCT=4111111111111111
&EXPDATE=12%2F15
&CSC=123
Response:
Error: Invalid Merchant or Merchant doesn't exist!
What can cause this problem?
PayPal Manager settings are:
Service Summary:
Hosted Checkout Pages Test
Payflow SDK/API (Full Access) Test
Transaction Process Mode: Test
AVS: No
CSC: No
Enable Secure Token: Yes
