If you’re like me you have an OpenCart site with thousands of possible option values for individual product options. Mine resulted from a large import of data. After which, I was no longer able to remove or add more option values (eg: too many fields in the form).
Many people think this is a limitation of OpenCart, which is not the case… the issue resides in your server’s PHP configuration. Specifically with PHP’s max_input_vars and post_max_size directives. Continue reading OpenCart Option Value Limits (imposed by server)