Training data is missing: Could not find any training data at the given path.

Question

Training data is missing: Could not find any training data at the given path.

Moavia Hassan 0

I'm trying to build and train custom model
https://eastus2.dev.cognitive.microsoft.com/docs/services/form-recognizer-api-2023-07-31/operations/BuildDocumentModel/console
but rain into issue of training data not found at the given path

Generated SAS Token with all permissions
added "base url" in CORS
placed files in container at both places at root and also inside folder
tried adding and removing prefix, added "/" and other stuff, but nothing is working
What can be issue?, I could not figure out...

here's request body
{

"modelId": "testmoasasd21",

"description": "string",

"buildMode": "template",

"azureBlobSource":

{

"containerUrl": "https://customstoragaccount3632.blob.core.windows.net/ContainerName?SAS_TOKEN,

"prefix": "/"

},

"tags": {

"createdBy": "string"

}

santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-02T08:46:55.9433333+00:00
Hi @Moavia Hassan,

Thank you for reaching out to Microsoft Q&A forum!

I repro your issue successfully with the below link by using Analyze document and Get analyze result options.

Link: Form Recognizer API

Provide below details in the Analyze document:

Resource Name: {END_POINT} modelID: {provide modelID} Content-Type: application/json Ocp-Apim-Subscription-Key: {KEY} { "urlSource": "{Provide container SAS URL}" }

In the Get analyze result provide required parameters and the resultid parameter will get from Analyze document response as a apim-request-id. See the output response below:

Hope this helps. And, if you have any further query do let us know.

If this answers your query, do click Accept Answer and Yes for was this answer helpful.
santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-03T09:06:35.2633333+00:00

Hi @Moavia Hassan,

Following up to see if the below answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. Thank you.
Moavia Hassan 0 Reputation points

2024-04-03T10:17:11.48+00:00

Could you please read my question again carefully!
I'm not trying to analyze the document using Pre-built-models, Instead I want to Build a CUSTOM MODEL
provided 5 documents to train the model, but getting error of Storage blob, "could not found training data"

here's API LINK: https://eastus2.dev.cognitive.microsoft.com/docs/services/form-recognizer-api-2023-07-31/operations/BuildDocumentModel
Moavia Hassan 0 Reputation points

2024-04-03T10:18:43.26+00:00

No, I was not asking that, please read my question again carefully!
santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-03T12:55:06.12+00:00

Hi @Moavia Hassan,

Thank you for your clarification. I tried to repro your issue after doing "Run layout" step manually in the Studio. By using POSTMAN tool mentioned required categories in the Body, but without mentioning "prefix":"/" and the Model got created successfully with 202 accepted. But the Model is in failed status in the UI from my side.

Please try to repro this issue from your side. Still the issue persists try to raise a support request through the Azure portal.

I hope you understand! Thank you.
Moavia Hassan 0 Reputation points

2024-04-03T16:01:25.5833333+00:00

Yes, the model failed because it couldn't read training data from Azure Account storage container, that's the issue i'm facing right now!
santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-04T06:09:51.2+00:00

Hi @Moavia Hassan,

Sorry for the trouble you are facing. I request you to raise a support case through Azure portal.

This will allow you to get assistance from Azure support in resolving the issue you're facing to read training data from Azure Account storage container. Please provide a detailed description of the issue, including any error messages or screenshots, when raising the support case.
Dyaneshwaran Sivashanmugam 21 Reputation points

2025-12-02T22:18:11.68+00:00

hello is this issue resolved ? i am getting same error and no luck with multiple retry ..

Your answer

santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-02T08:46:55.9433333+00:00

Hi @Moavia Hassan,

Thank you for reaching out to Microsoft Q&A forum!

I repro your issue successfully with the below link by using Analyze document and Get analyze result options.

Link: Form Recognizer API

Provide below details in the Analyze document:

Resource Name: {END_POINT} modelID: {provide modelID} Content-Type: application/json Ocp-Apim-Subscription-Key: {KEY} { "urlSource": "{Provide container SAS URL}" }

In the Get analyze result provide required parameters and the resultid parameter will get from Analyze document response as a apim-request-id. See the output response below:

Hope this helps. And, if you have any further query do let us know.

If this answers your query, do click Accept Answer and Yes for was this answer helpful.
santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-03T09:06:35.2633333+00:00

Hi @Moavia Hassan,

Following up to see if the below answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. Thank you.
Moavia Hassan 0 Reputation points

2024-04-03T10:17:11.48+00:00

Could you please read my question again carefully!
I'm not trying to analyze the document using Pre-built-models, Instead I want to Build a CUSTOM MODEL
provided 5 documents to train the model, but getting error of Storage blob, "could not found training data"

here's API LINK: https://eastus2.dev.cognitive.microsoft.com/docs/services/form-recognizer-api-2023-07-31/operations/BuildDocumentModel
Moavia Hassan 0 Reputation points

2024-04-03T10:18:43.26+00:00

No, I was not asking that, please read my question again carefully!
santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-03T12:55:06.12+00:00

Hi @Moavia Hassan,

Thank you for your clarification. I tried to repro your issue after doing "Run layout" step manually in the Studio. By using POSTMAN tool mentioned required categories in the Body, but without mentioning "prefix":"/" and the Model got created successfully with 202 accepted. But the Model is in failed status in the UI from my side.

Please try to repro this issue from your side. Still the issue persists try to raise a support request through the Azure portal.

I hope you understand! Thank you.
Moavia Hassan 0 Reputation points

2024-04-03T16:01:25.5833333+00:00

Yes, the model failed because it couldn't read training data from Azure Account storage container, that's the issue i'm facing right now!
santoshkc 15,615 Reputation points Microsoft External Staff Moderator

2024-04-04T06:09:51.2+00:00

Hi @Moavia Hassan,

Sorry for the trouble you are facing. I request you to raise a support case through Azure portal.

This will allow you to get assistance from Azure support in resolving the issue you're facing to read training data from Azure Account storage container. Please provide a detailed description of the issue, including any error messages or screenshots, when raising the support case.
Dyaneshwaran Sivashanmugam 21 Reputation points

2025-12-02T22:18:11.68+00:00

hello is this issue resolved ? i am getting same error and no luck with multiple retry ..