As we all know, the shelf life of products is 7 days or 14 days. The promotional links you generate are just links to products that have not changed at present. If the store plan is cancelled or expired and the seller modifies the product information, then your promotion link cannot be opened. 2. Some places are not allowed to be popularized in taobao guest. For example, some websites can't be opened with UC browser, so use 360. This is why your promotion link must be effective where promotion is allowed. 3. The promotion links in taobao guest are time-limited. If it takes more than half a month, if it takes more than half a month, it won't count as your own order. 4. Another situation is that the buyer placed an order according to your link, but cancelled the order for individual reasons, so it is inevitable that your promotion link cannot be tracked at this time.