微信小游戏广告投放，“按注册出价”，这个注册准确是指哪个阶段？

AI助手支持GPT4.0

In the wechat advertising of appid wx11c7b5a8e1583f1f small game, intelligent optimization "bid by registration". Which stage does this registration exactly refer to? There is too much difference between the data collected in the background and that in the wechat background. Please answer the operation help

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