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I'm trying to get all articles which are published and online. In my user I turned on all permission set and so one to have access to Knowledge.

List<Knowledge__kav> myList= [SELECT Id, KnowledgeArticleId, PublishStatus, Language, Title, Summary, ArticleNumber, ArticleType, ArticleBody__c FROM Knowledge__kav WHERE PublishStatus='Online'];

Above is my query, but in log i got sth like this.

sObject type 'Knowledge__kav' is not supported.

Can somebody know how to get all object of this type in Apex class ?

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    Have you enabled Knowledge User checkbox in your user who executing this query – Reshma Jan 18 '19 at 15:53
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Knowledge can be a bit confusing to query. I don't believe querying knowledge directly is supported. However, you can query the knowledge articles per article type. For instance, if your article type is called Offer, you can query it like:

SELECT Title
FROM Offer__kav
WHERE PublishStatus='online'
  • N.B. see schema. There is no Knowledge SObject – cropredy Jan 18 '19 at 21:32
  • I think there is an Knowledge sObject, just no object, or if there is an object for it then we can't query it. Otherwise the the error message shouldn't be: sObject type 'Knowledge__kav' is not supported – Kasper Jan 18 '19 at 21:48
  • right, I was sloppy - I meant Object :-) – cropredy Jan 18 '19 at 22:09
  • Yeah but when i try assigne it to list (List<sObject> or List<Object> or List<Knowledge__kav>) it doesnt work. So how i should assigne my query to list of some types of object ? – artist Jan 21 '19 at 8:01
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Ok, the problem was that i havn not permission set on this article type. So if someone in future will have same issue this is the fix.

  • This answer would be more likely to help future visitors if you edit its content to specify how you check/manipulate this permission. – Adrian Larson Jan 21 '19 at 13:39

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