Set up upload to Yandex Market ( site on yii )

Good afternoon, you need to set up the upload of goods to Yandex Market
On the site site on yii is already set up automatic updating of prices and balances, you just need to do the same, but on the Yandex market.
We download from 3 pieces and from 500 rubles and for certain brands.
P.S. the previous programmer made a link to all the content, but since it is large more than 30,000 products or incorrect, we could not upload the goods to the personal account of the market.