Im creating a master-detail field on a custom object I just created and I was wondering why this standard object (AccountContactRelation) does not appear when I want to select it as the Master... Thx and sorry for my english in advance

1 Answer 1


AccountContactRelation standard object cannot be in Master-Detail relation. Same goes for any other junction object in Salesforce.

A junction object can't be on the master side of another master-detail relationship.

More to read about relations in SF: https://help.salesforce.com/articleView?id=sf.relationships_considerations.htm&type=5

  • Thanks a lot for your fast response and sorry if it was too obvious but I couldnt find any reason on the documentation :D
    – Gatosaurio
    Commented Jul 7, 2021 at 10:05
  • @Gatosaurio Have added the link to documentation and cited text from it, you can search for it on docs page and read more about it :) Commented Jul 7, 2021 at 10:05
  • Thanks again for being so helpful!! :)
    – Gatosaurio
    Commented Jul 7, 2021 at 10:10

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .