We have added the product informations to our local database using webservices api of CJ.
Some of the products which we have added to our database need to be updated. We need to reacquire those product infos.
We would like to do this with sku information that we have saved with product information.
But when we search using cj's productsearch v2 api for advertiserSku unfortunately we don't get any results. I wonder if we are not able to search with adcertiserSku. Is there any problem with api if you know anything about this?
what do you think the updating strategy should be for the product informations?

thanks in advance..