---
title: Testing a subroutine
description: Learn how to test a subroutine in APIANT by running it standalone from the catalog. Enter input values, execute the subroutine, and review its graphical history to verify correct functionality before using it in automations.
---

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# Testing a subroutine

## Learn how to test a subroutine in APIANT by running it standalone from the catalog. Enter input values, execute the subroutine, and review its graphical history to verify correct functionality before using it in automations.

Standalone testing of a subroutine can be done by right-clicking on it in the catalog and choosing the Test option:

![Document image](https://images.archbee.com/Y2QGD8otsIOv4e0hQQnqa/knaBl3uRLTEC7R2xhT5H9_image.png?format=webp)

 

Enter values for the input fields:

![Document image](https://images.archbee.com/Y2QGD8otsIOv4e0hQQnqa/psjaWDeaU_IEW9a2n8KVt_image.png?format=webp)

 

The subroutine is executed and its graphical history is displayed:

![Document image](https://images.archbee.com/Y2QGD8otsIOv4e0hQQnqa/okfKoAwoi_dJxZ0yTHWXo_image.png?format=webp)

 

 

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