My Gravity Form Won't Process to PayPal Login Page

[jmoede]

Hello,

I have been troubleshooting an issue with my WordPress site for a few days now, and I believe I have determined that the issue must be releated to the new streamlined checkout experience that PayPal rolled out as of March 29, 2017, as it was working prior to that.

My form is located at the following URL:  https://reddesertfuturity.com/index.php/red-desert-enter/

Some of the form works just fine, but when I select any of the following Product Options for "Horse 1 Events:"

-- Futurity H1 1st Installment

-- Futurity H1 2nd Installment

-- Futurity H1 3rd Installment

-- Derby Maturity H1 1st Installment

-- Derby Maturity H1 2nd Installment

-- Derby Maturity H1 3rd Installment

When any of the above options are checked, Paypal returns the following error after the submit button is clicked:

https://www.paypal.com/webapps/shoppingcart/error?flowlogging_id=6cc22da2b7e8c&code=ADDRESS_ERROR&mf...

All other product options take me to the PayPal login screen without any issue. I am wondering if the issue with these options is that the fields are named too similarly. But their Field IDs are unique, and they don't have more than 64 characters.

To get the "Horse 1 Events" field to be visible, please select that you are entering 1 horse in the form.

Any help you can provide would be greatly appreciated. My site was built with WordPress, and I am using Gravity Forms with the Gravity Forms PayPal Standard Add-On plugin.

[jmoede]

I should note that the form was functioning just fine -- and all options were passing through to the PayPal login -- earlier in March.

[MTS_Ciaran]

The issue here is related to the migration work on March 29th, we've been communicating out to merchants over the past few months and it can be seen on the right in the annoucements box ->

The specific problem is OS variables in the PayPal form. The lenght is above the allowable value of 64 characters, you just need to reduce these and it should work ok. 

[jmoede]

I have tried shortening the names of the six events with issues, but it still isn't working. You can view this test form here:

https://reddesertfuturity.com/index.php/test-new-futurity-entry-form/

And interestingly, the option with the LONGEST name [ Fast Cash Slot Race H1 1st Installment (inc. $50 processing fee) +$300.00 ] DOES PULL THROUGH TO PAYPAL just fine.

There must be something else going on here, and if we can't get it resolved, I will need to look at other payment options besides PayPal ...