阿倫經常觀察 Google Ads 廣告活動並調整出價。最近他發現使用自動廣告活動時，最好在累積一定的轉換次數後再變更出價。阿倫至少應先累積多少次轉換，再對 Google 應用程式廣告活動套用出價變更？

For Google App campaigns, it's recommended to accumulate at least 100 conversions before making significant bid changes. This allows the automated bidding strategies sufficient data to learn and optimize effectively. Changing bids too frequently or with insufficient conversion data can disrupt the learning phase and lead to suboptimal performance. While 25 or 50 conversions might seem like a good start, they often don't provide enough statistical significance for the system to accurately assess the impact of bid adjustments. 200 conversions, while providing more data, is not the minimum recommended threshold and waiting that long might delay optimization unnecessarily.