Credit check skipping Failure when using EFF

Summary:

I tried a solution to skip the credit check failed status. I've used the documents' 'Skip Credit Check When You Use an Extensible Flexfield' part as guide. Also, you find the document below. But the extension does not work when I enter value as "Y". Also, I receive the credit verification error . When I search for the error on support, they say that it is about copying the sales order from original one. But I' ve created the sales

code as below :

import oracle.apps.scm.doo.common.extensions.ValidationException;
if (header.isRevisionDraftOrder()) {
def pccFlag = null;
def row = context.getDbAdapter().getLookupRow("AR_FEATURES", "AR_CREDIT_MGMT");