1. In any Bubble workflow add action:   Plugins → Show Toast

2. Fill in the fields:
  • message  → text to display
  • type     → success / error / warning / info
  • position → top-right / top-left / top-center /
               bottom-right / bottom-left / bottom-center
  • duration → seconds before auto-dismiss (default 3)
  • font_size → text size in px (default 14)

3. Hit preview and trigger the workflow - toast appears instantly

Demo editor link:
https://bubble.io/page?id=mbbuilds5&test_plugin=1778735762949x980567825421172700_current&tab=Design&name=toast&type=page