Api attachments

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Posted on by Ankit Surana

Hi Team,

Can you please guide me on how to work with the API of "attachment" to attach the document to "Sales Order" or "Sales Invoice"?

I have tried sending the attached request as per documentation, but it fails with the below response:

Request:

AttachmentRequest.txt

Response:

{"error":{"code":"BadRequest","message":"Read called with an open stream or textreader. Please close any open streams or text readers before calling Read. CorrelationId: 910e6436-db62-48c5-a739-0e87dcdba8be."}}

Can you please help us in this scenario.

Looking forward to your responses.

Thanks & Regards,

Ankit

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Answers (1)

dynamicsdevman 30 on at

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RE: Api attachments

I got this working by setting "If-Match" header value as "*" instead of the "W\" value of odata.etag response in POST API call. Thanks much.
dynamicsdevman 30 on at

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RE: Api attachments

After changing the version to v1.0, getting the error response message as below,

Am i missing anything here?
dynamicsdevman 30 on at

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RE: Api attachments

When replacing the api version to v1.0, getting a response error message as below,

I know this thread is a year old. But is there any resolution for uploading the attachment content? Much appreciate your help.
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JAngle 95 on at

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RE: Api attachments

Directly no. Pattern I’ve tried is having a stand alone table/page. Once a record is added then passing it to the real attachments location. There is a series of blogs like this one that explain it to a point: www.sauravdhyani.com/.../msdyn365bc-test-base64-conversion-via_14.html
alex_li 60 on at

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RE: Api attachments

Hi Josh, is it possible to attach a file to Sales entities through BC api?

The method we described earlier works perfect for those entities that have Incoming Document tab.

But for Sales Order and Sales Invoice this tab is absent. There is only the "Attachments" one.
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JAngle 95 on at

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RE: Api attachments

Change the second v2.0 to v1.0. I got the same error as you until I flipped to that
Ankit Surana 35 on at

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RE: Api attachments

i tried as per your suggestion , but it still doesnt work.

Please see the attachment for Reference
Ankit Surana 35 on at

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RE: Api attachments

i tried as per your suggestion , but it still doesnt work.

Please see the attachment for Reference
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JAngle 95 on at

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RE: Api attachments

Late to the party but I had to explain this to a customer a few days back so did this post: joshanglesea.wordpress.com/.../

Since had it working in Power Automate as well.
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alex_li 60 on at

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RE: Api attachments

You need first to create an attachment in your BusinessCentral record by sending the POST request as it was described earlier. As a result you receive an attachment id that can be used as follows: