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Calling external PHP script with nlapiOutboundSSO, POST instead of GET?

edited Dec 2, 2019 5:47PM in SuiteCloud / Customization

I have a Suitelet form in our Customer Center which has been working great for quite some time. Our customers log in, see a form pre-filled with recommended defaults based on their customer data, and after submit the form shows a message and URL based on the POSTed data.

The URL uses an outbound SSO to a PHP script, which parses parameters and creates a one-time downloadable file. (This code can't be ported to Suitescript.)

The problem: the URL parameters can exceed 2,048 characters, which breaks some browsers.

Typically this means a form POST with hidden variables would be needed, but I can't get the Suitelet form to post to my PHP script; it only posts back to itself.

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