How to quickly distinguish available numbers from invalid numbers when testing WhatsApp
When conducting WhatsApp delivery testing, the most easily overlooked point is not the material, words, or delivery channels, but the quality of the data itself. If the front-end uses a batch of unscreened numbers, no matter how sophisticated the delivery strategy is, the final data feedback will be seriously interfered with, or even misjudged, leading to a complete deviation in the subsequent direction.