You can read more about the various types of UI Handlers on Microsoft Docs here: https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-extension-advanced-example-test#ui-handlers.
You can read more about the various types of UI Handlers on Microsoft Docs here: https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-extension-advanced-example-test#ui-handlers.