Thank you very much.
Yes, to control the logic to be executed for only once, I used to use parameter defined in Parameter list, but the method I used to check the value is set or not is not very perfectly, e,g
if (strcmp(lr_eval_string("{paymentID}"), "{paymentID}") == 0)
{
Set the {paymentID}
}
The initial value of {paymentID} is itself instead of NULL or empty string...
So, do you have better solution for this?
Thanks in advance!