getting a blank checkout page when enabling payment instruments for suitecommerce

AI generated answer (using internal Slack threads):

If you're getting a blank checkout page when enabling payment instruments for SuiteCommerce, it could be due to a few reasons: 1. Incorrectly Configured Payment Processing Profiles: If the "Use strict rules for the selection of Payment Processing Profiles" accounting preference is not enabled before upgrading to the NetSuite 2020.2 release, the preference will be automatically enabled on your account. Then, any incorrectly configured Payment Processing Profiles will no longer be offered in contexts for which they are not configured. Consequently, you will not be able to accept payments in such contexts. 2. Payment Method Not Showing: If the credit card payment method is not showing on the web store with Reference Checkout 2.05.0 when there isn't a payment processing profile setup, this could also lead to a blank page. 3. Single Page Checkout Issues: If you're trying to implement a single page checkout on Sitebuilder, there could be some issues with the setup. The old Reference Checkout bundle used to have a one-page option. Not sure if the same applies with the current Sitebuilder Extensions (Kilimanjaro?) bundle, but it's available to install and experiment with if you have a sandbox. Alternatively, you can deploy a custom SSP on the site's checkout touchpoint. That way, you can build whatever you want. The Commerce API makes this reasonably straightforward, but expect some pain if you need to implement 3D Secure. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******