Looks like you still have to undo your utl_http setups for SSL Configurator.
Using Batch Validation and AltBatchValidateURL Correctly in an SSL Environment (Doc ID 458587.1)
R12: Update Quantity In Cart: Error Returned From CZ_CF_API.Validate, Validation_status <> 0 (Doc ID 1521699.1)
Enabling SSL or TLS in Oracle E-Business Suite Release 12 (Doc ID 2143099.1) - Section 4: Database Tier Setup
we changed templateURL & returnURL.append from qotSFgcFrame.jsp page. Bounced apache services. Issue resolved. Thank you