Is there a limit to the number of fields in a custom model?

Manaloto, John [IBM] 16 Reputation points

I have a custom model that fails to build with the following error:

ModelBuildError: Could not build the model: Can't find valid fields.json file in provided dataset.

It was working with 315 text fields. After adding 54 more fields, it consistently fails to build/train with the above error. Is there a limit to the number of fields for a custom model? I receive the same error with either neural or template model.

Azure AI Document Intelligence
Azure AI Document Intelligence
An Azure service that turns documents into usable data. Previously known as Azure Form Recognizer.
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