Error 10434

I recently had 2 orders come in with this error note:

PayPal Pro payment failed (Correlation ID: a46dfb5be7639). Payment was rejected due to an error: (10434) “10434-Value of Custom element has been truncated.” Order status changed from Pending Payment to Failed.

Both orders were using PayPal Pro, and on both the customer had wrote an order comment that exceeded 256 characters in length.

I am assuming that the order comment is the custom element referred to in the error report. I do not know if the order comment passes through to PayPal using the Pro payment method without looking in the code, but again, I am assuming it does.

I’ve used a jquery snippet to add and enforce a maximum character length on the #order_comments text area and shall await further orders from long winded customers to verify. However, if this is the case, then perhaps the plugin should have a method to add a maximum character length to the comments form?

Thank you.

https://wordpress.org/plugins/paypal-for-woocommerce/