I generated the Model Id using From Recognizer Labeling too (The docker image). I am trying to use this same model id in From Recognizer API.
https://{endpoint}/formrecognizer/v1.0-preview/custom/models/{id}
but it say 404 .
The below URL says we can use the generated model Id: https://docs.microsoft.com/en-us/azure/cognitive-services/form-recognizer/quickstarts/label-tool
Model ID - The ID of the model that was created and trained. Each training call creates a new model with its own ID. Copy this string to a secure location; you'll need it if you want to do prediction calls through the REST API.