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I am trying to deploy an update to a custom object. The object and classes associated with it work perfectly in my sandbox, but when I try to deploy, I get the following error:

Cannot set sharingModel to ControlledByParent on a CustomObject without a MasterDetail relationship field

The object has two fields of Master-Detail type, one is Contact, which I left default sharing and one is another custom object which I set to Read Only.

On the object itself I unchecked sharing in the hope that would help.

Does anyone have any idea what I can do here?

Thank you!

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    Have you included all of your object's fields in your deployment, or just the object itself?
    – Alex Tennant
    Commented Sep 24, 2014 at 10:28

2 Answers 2

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This is a recent issue with Salesforce. To workaround this issue, please add the master detail field (even if it has not been changed) to your deployment and the error will go away.

I have already filed a Case with Salesforce and they are working on it.

Salesforce knowledge article link

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  • Can you please provide a link to that Case?
    – Andrii Muzychuk
    Commented Dec 9, 2014 at 20:03
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    I also would like the link, or if you have posted to the Salesforce Community website. Its 2016 and this issue hasn't been fixed.
    – Renato Oliveira
    Commented Feb 23, 2016 at 23:22
  • Seems I still get this issue... any update on it yet? please.
    – Pasan Eeriyagama
    Commented Jan 16, 2017 at 9:17
  • But what do you do when you cannot see the object on the list, to be added to the changeset
    – user853710
    Commented Mar 25, 2017 at 13:32
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    It's 2020 and I'm still getting this error - now with scratch orgs too! :)
    – Renato Oliveira
    Commented Nov 17, 2020 at 20:16
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I had the same problem. First I deployed the custom object without the fields and hence the deployment failed. Then I came across this post, did not understand it well, but I assumed to add the custom fields of the custom object in the change set as well as the custom object and it worked.

So we need :

  1. The custom object to be added to the change set
  2. The custom fields of that custom object to be added as well to the change set.

I just don't know why salesforce are separating the custom fields from the custom object. Thans sridhar for the hint

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