i'm trying to get products custom options list using magento API SOAP v1.
I have two magento store, 1.8 and 1.5 On my 1.8 store, everything working normal. But when i try to magento 1.5 product custom option cannot be displayed.
Error : Ivalid api path.
I use the same code, only changed for apiuser and apikey.
My code based on this link : http://www.magentocommerce.com/api/soap/catalog/catalogProductCustomOption/product_custom_option.list.html
How can fix i this? Thanks