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Trouble creating a Workfront Custom API call for Nested Updates

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Level 2

I have created an API Custom API Call to update the predecessor of a task. I have received an error on the module below.

I am wondering if I am just missing some commas or quotes in the body or if I am completely off. The error says "[422] APIModel INTERNAL does not support field data (Task)" so I am wondering if updating nested fields is not even possible.

Any help is greatly appreciated!

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4 Replies

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Employee

This is a fantastic question.

Predecessors are one of the curiosities of the Workfront API. You can not PUT/POST directly to the predecessor object either through the task or directly. Instead WF engineered a READ-ONLY field into the API called predecessorExpression. In effect here you would literally place the same string you would when entering a predecessor into the UI. Take a look at the attached example on how to do this. Note in my example it is a cross project predecessor, but the idea is the same. Instead of the reference number of a different project, just put your "Task Number" + the secondary elements like ff or such.

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Level 1

@Andy Hess‚ Is there a way to add a predecessor in addition to the existing one using Fusion? Say if task A has a predecessor B already and after the Fusion run I want the task A to have both predecessor B and C. Thanks

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Employee
Certainly, there are several ways. My favorite is to use the tasks predecessorExpression field in a PUT. Here you simply place the same value you would if you were typing the predecessor in the UI. Don’t think it is destructive and adds one. You can also replace the predecessor object and add another value to the existing one using a JSON data structure. Andy Hess Workfront, an Adobe company <> | c. 561.252.3329 | andyhess@adobe.com Need to schedule a meeting? Choose your 60 minute meeting here for Integration Consulting<>