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Changes to Workflow Builder Model IDs

Learn about changes to the workflow builder model IDs

Change: Fixed an issue where the workflow builder inconsistently returned an old hash-based ID, instead of a new, user-friendly V2 ID of models

Fix Release Date: July 27th, 2023

Who is affected: Portal and API users who need to match the model IDs returned from workflows

Type of change: Critical, breaking change

What you need to do: See below.


If you pick a model when creating a workflow on the Portal, you will see the ID of the model you’ve selected. This is the V2 ID, which is a human-readable, user-friendly version of the ID of the model.

For example, the V2 ID of the following visual classification model is apparel-classification-v2.

apparel classification model id

However, if you save the workflow and access the model again, you will notice that the ID of the model has changed to an old version, which we had migrated from. That ID is a hash value that may not be user-friendly.

apparel classification model hash id

And if you use the ListWorkflows API method to get all the custom workflows in your app, you notice that the backend returns the old hash-based ID of the model.

get custom workflows app


To fix the inconsistency, all workflow graphs will start returning the new V2 ID of models, instead of the old hash-based ID.

What you need to do

  • If you’re an API user who depends on programmatically matching the model IDs returned from workflows, you need to ensure that you correctly reference the V2 ID of your models in your code.

  • If you’re a Portal user who checks the results of your workflow graphs by matching the model IDs, you need to ensure that you correctly check the V2 ID of your models.