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How to retrieve knowledge base articles and its attachments to Power Pages?

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Posted on by Tamilarasu Arunachalam

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Hi,

I have been working on the retrieving knowledge base article along with its attachments. I can be able to fetch the knowledge article content, but I could not be able to fetch its attachments. I have used fetch xml to accomplish this.

For fetching attachments, I have tried to fetch the attachments of knowledge article from annotations table by filtering the objecttypecode eq 'knowledgearticle'. I need to get the base64 content of the attachment so that i can add that as a downloadable file in the portal. The filter will be like below.

https://<orgnamexyz123>.crm.dynamics.com/api/data/v9.2/annotations?$filter=objecttypecode eq 'knowledgearticle'

But I couldn't get results, and it returns an empty array. Are there any configurations behind this to fetch the attachment value from the D365 CRM Web API.

Any help or suggestions or other workaround on this would be much appreciated.

Thanks,

Tamilarasu Arunachalam

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Muhammad.Affan 4,624 Super User 2025 Season 2 on at

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Hi There,

Refer to these links:
https://learn.microsoft.com/en-us/dynamics365/customer-service/administer/set-up-knowledge-management-embedded-knowledge-search#update-knowledge-article-attachments-for-portal

https://community.dynamics.com/forums/thread/details/?threadid=c66cee9f-a99b-4ebd-be11-6e4959d9c4c9

Finally, once your issue is resolved and my suggested answer has helped, please do not forget to click Yes under "Did this answer your question?" to close this thread.

Thanks
Affan
Follow my channel related to Dynamics 365: https://www.youtube.com/@AffansDynamicsJourney

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Sachin Jadhav 157 on at

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Hi,

Attachments added on Knowledge article(knowledgearticle) are stored in entity msdyn_kbattachment

The relationship between knowledgearticle and msdyn_kbattachment is M:M (msdyn_msdyn_kbattachment_knowledgearticle)

The actual file content that is the base 64 file itself is then stored in fileattachment table with objecttypecode and objectid pointing to msdyn_kbattachment table

So if you have knowledgearticleid for knowledgearticle table, you can retrieve related attachments as follows.

Fetch Query:-

<fetch>
<entity name="knowledgearticle">
<attribute name="knowledgearticleid" />
<filter>
<condition attribute="knowledgearticleid" operator="eq" value="32b90f18-abf7-ea11-a815-000d3a1b14a2" />
</filter>
<link-entity name="msdyn_msdyn_kbattachment_knowledgearticle" from="knowledgearticleid" to="knowledgearticleid" intersect="true">
<link-entity name="msdyn_kbattachment" from="msdyn_kbattachmentid" to="msdyn_kbattachmentid" alias="ka">
<attribute name="msdyn_filename" />
<attribute name="msdyn_filetype" />
<attribute name="msdyn_filesize" />
<link-entity name="fileattachment" from="fileattachmentid" to="msdyn_fileattachment" link-type="outer" alias="fa">
<attribute name="body" />
</link-entity>
</link-entity>
</link-entity>
</entity>
</fetch>

ODATA 4.0 (WebAPI equivalent query):-

https://<orgid>.crm8.dynamics.com/api/data/v9.2/knowledgearticles?$select=knowledgearticleid&$expand=msdyn_msdyn_kbattachment_knowledgearticle($select=msdyn_filename,msdyn_filetype,msdyn_filesize;$expand=msdyn_fileattachment($select=body))&$filter=(knowledgearticleid eq 32b90f18-abf7-ea11-a815-000d3a1b14a2) and (msdyn_msdyn_kbattachment_knowledgearticle/any(o1:(o1/msdyn_kbattachmentid ne null)))

If this answers your question, please accept the same

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