1. First, open the enterprise WeChat in the main interface, click the location indicated by the red mark, and then click "Avatar".

2. Secondly, in the opened new interface, continue to click "My avatar" to open a new interface, open "Personal Information", slide down the screen, find "Work Signature" and click.

3. Finally, after opening the work signature setting interface, you can fill in "Parent Signature" in the box indicated by the red label, and then click "√" in the upper right corner of the screen to make changes.