Customer uses SecurePay as their Credit Card Gateway. They are trying to process a Refund but received an error txnID must be numeric.
This normally happens if the customer wanted to process a refund of their SecurePay transaction without the associated or reference P/N Ref of the Payment transaction.
Here are the two scenarios:
1. Customer processed the refund in SecurePay's website
1.1 Process a refund from Credit Memo > pull up the Credit Memo and click the Refund button
1.2 On the Refund Method tab > unmark Process Credit Card checkbox
1.3 Hit Save
*This is for recording purposes since the refund was already done in SecurePay.
2. Process refund within NetSuite
2.1 Pull up the Payment transaction > Payment Method tab > copy the P/N Ref
2.2 Pull up the Credit Memo created and click on the Refund button
2.3 Go to the Refund Method tab
2.4 Paste the P/N Ref taken from the Payment page to the P/N Ref on the Refund Method
2.5 Make sure that Process Credit Card is marked
2.6 Hit Save