My client wants to register in product much information each product (at the moment I have 34 variables for each product), I can't use saint because every week the product information may change (for example product season can can change every month). I know that there is a limit of 100 byte each product, is there a workaround to avoid this limit?
Unfortunately, SAINT seems like your best option, but to make it more efficient, you'd use SAINT + FTP. That means, you'd work with your product team to generate a new SAINT file every time products are updated. Then they would automatically upload that to an FTP server. You'd then configure Adobe to get SAINT files from that server periodically.
If everything has been programmed and configured correctly, it should be a one-time setup, and little-to-no subsequent manual work from you.