Let's say I have Lookup between custom object and standard Account object as a master. But

select id, name, Account.id from MyObect__c

always returns an error

'Didn't understand relationship Account in field path' I'm 100% sure that there is the field with lookup to Account in MyObject. What am I doing wrong and can I resolve this issue?


If you're dealing with a custom SObject, then that relationship is going to be a custom field.

Therefore, it'll be Account__c, and you'll need to use Account__r.Name1 in your query. That'll be true for both lookup relationships and master-detail relationships.

The only time you can avoid using __c or __r is when you're dealing with a standard relationship (e.g. OpportunityId between OpportunityLineItem and Opportunity)

1: If you're just looking for the Id, there's no reason to query up the relationship hierarchy. Just query for the relationship field on your custom object (i.e. Account__c). If you do need some other piece of data on the related object, then you'll need to use __r to access it in the query

  • I'm afraid I don't quiet understand your answer. I have 2 objects - standard Account object and custom MyObject. But according to your suggestions select Account__r.name doesn't work for me as well
    – pincet
    Oct 18 '20 at 19:37
  • 1
    @pincet If your relationship is a custom field then, whatever you've called it, the API name ends in __c. You need to change that to __r when you're trying to query up from a child record to get parent record data. If that's still not enough, then you should edit your question to contain more details.
    – Derek F
    Oct 18 '20 at 19:45
  • Parent is the standard Account object and I need to retrieve fields using child-to-parent query
    – pincet
    Oct 18 '20 at 20:00
  • 1
    @pincet and what is the API name of your relationship field to Account?
    – Derek F
    Oct 18 '20 at 20:32
  • Derek, it was my bad. Now it's clear. Thank you
    – pincet
    Oct 19 '20 at 8:07

It seems this is a custom object.

[SELECT name, Account__c FROM MyObect__c]

Like Derek said before, navigate to your object and see the api name for it and add the __c to it if you are trying to get the reference for the account.

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