# How to implement outcomes using an external form engine

**URL:** https://forum.flowable.org/t/how-to-implement-outcomes-using-an-external-form-engine/3126
**Category:** Flowable Engine
**Created:** [December 26, 2018, 5:40am UTC](https://forum.flowable.org/t/how-to-implement-outcomes-using-an-external-form-engine/3126 "2018-12-26T05:40:46Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![prem911](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/prem911/32/975_2.png) [@prem911](https://forum.flowable.org/u/prem911)
#### Post date: [December 26, 2018, 5:40am UTC](https://forum.flowable.org/t/how-to-implement-outcomes-using-an-external-form-engine/3126/1 "2018-12-26T05:40:46Z")

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In the default Form engine, there is a possibility to use custom form outcomes and this shows the outcomes as clickable buttons when the human task is getting executed.

What are the ways in which this can be done using an external form engine like [form.io](http://form.io)?

Any one tried this already?

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### Author: ![tijs](https://avatars.discourse-cdn.com/v4/letter/t/bc79bd/32.png) [@tijs](https://forum.flowable.org/u/tijs)
#### Post date: [December 29, 2018, 10:38am UTC](https://forum.flowable.org/t/how-to-implement-outcomes-using-an-external-form-engine/3126/2 "2018-12-29T10:38:01Z")

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Hi,

With an external form engine you can implement the outcome buttons with that form technology. When the form is submitted the Flowable APIs can be invoked using the selected outcome button as one of the variables.

Best regards,

Tijs