Unable to select a category when publishing 小程序.

When publishing a Mini Program, no category selection appears on the publish page, as shown in the figure.

1. No category was selected; 2. Because no category was selected when registering the Mini Program.

(Purpose of categories: they help better adapt to Nearby Mini Programs

Tags: keywords submitted to WeChat. Tags are just like a description; they are descriptions for a certain category and have no impact.)

If you cannot select it, Step 1: visit and log in to https://mp.weixin.qq.com WeChat Mini Program, and add it under Settings -- Basic Settings -- Service Category, as shown below.

Step 2: Return to the Mini Program management page, click Mini Program Creation - Bottom Navigation - Save once (equivalent to updating), as shown in the figure.

Step 3: Publish again and you will see the category.