In the product description of each fund product, there will be a paragraph about the maximum amount of a single subscription. Because different fund products have different regulations, there is no accurate answer to how many funds Alipay can invest in at a time. There are also fund products that are not limited to making a single purchase with the highest amount.
Under normal circumstances, it is difficult for individual investors to reach the maximum amount of a single purchase because the amount is set very high. Only institutional investors will have a large amount of investment funds, which may touch this law.