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@Keiji_otsubo(Keiji Otsubo)

The field 'Property__c' either does not exist on the Offer__c object or it is not a Master-Detail relationship.

Last updated at Posted at 2022-08-23

何で間違えているのが理解できないので英語で回答する前に日本語でも回答を書けません。
どうやったら間違うのかが不思議です。

とりあえず見つけたら記録して傾向を調べます。

. I found out the issue. I was creating my Master & Lookup relationship in the wrong custom object. It was supposed to be in the "Offer" object that I made previously.

Could you please make sure that you are checking challenge against correct Playground.

In this situation you need to follow below steps:-
Firstly create a new playground Now create a Custom object called Offer and create another Custom object called Property in Object Manager In Property custom object create Look-up relationship for Contact and then in Offer custom object create Main- detail relationship for property and look-up for contacts as well.

https://trailhead.salesforce.com/en/trailblazer-community/feed/0D54S00000HFODX

The correct settings are:
image.png

Make sure the Property object is created using the Object Manager.
I think you created it in the previous assignment.

実際に２つのオブジェクトを作ってみたけど、何にも問題ない。

image.png

似たような課題　Favorite　と Property

image.png

Propertyオブジェクトを作ってないのが原因

image.png

Offer__c がない

image.png

Could you please make sure that you are checking challenge against correct Playground.

外部オブジェクトを指定しているのが違っています。参照関係を選択してください

image.png

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