Developer name has to be unique


よく分からないエラーです。


+ [Developer name has to be unique.](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007EZC0ESAX)

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/328136/7db0513b-0b34-0c55-c120-e521ca69891c.png)


+ [Developer name has to be unique.](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007MZffUSAT)

+ [, Developer name should have be unique](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007UvnoJSAR)
+ [Hi , Guys Can You Please Help Me How to resolve this issue , While Middle of the Module is "Customize Record Pages"](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007X7eMiSAJ)
+ [I am trying to complete " customize record page unit but keep getting this error 'You must enter a value for page property 'DeveloperName'.](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007UvVRb)

:::note
Finally I was able to resolve this issue. Due to errors in given exercise, I tried performing same exercise twice. Hence "Customer Account Page" was already existing while I tried to create another one. Once I deleted this page, I was able to create and save page correctly.

最後にこの問題を解決することができました。与えられた演習でエラーが発生したため、同じ演習を 2 回実行しようとしました。したがって、別のページを作成しようとしたときに、「顧客アカウントページ」がすでに存在していました。このページを削除したら、ページを正しく作成して保存できました。
:::

+ [Customize Record Pages](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007X9aomSAB)


# This Unique Name already exists or has been previously used. Please choose a different name.

+ [Error: This Unique Name already exists or has been previously used. Please choose a different name.](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007Pf9Vi)

:::note
Are there any deleted items left in the recycle bin?
I think there will be no duplication if you delete it from the recycle bin as well.

https://salesforce.stackexchange.com/questions/67597/salesforce-document-unique-name-issue


削除したアイテムがごみ箱に残っていますか?
ゴミ箱からも削除すれば重複はなくなると思います。
:::


[DeveloperName フィールドへのアクセスを必要とするユーザーに付与する](https://help.salesforce.com/s/articleView?id=release-notes.rn_forcecom_permissions_grant_access_developername_field.htm&release=234&type=5)


+ [Retrieve deleted steps in an Approval Process](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007XEjmd)

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/328136/796a942c-50ba-6af4-8c92-6613a5db18b5.png)


:::note
Are there any deleted items left in the recycle bin?
I think there will be no duplication if you delete it from the recycle bin as well.

https://salesforce.stackexchange.com/questions/67597/salesforce-document-unique-name-issue
:::


# 既に存在しているというエラー 解決している例は見たことない闇

+ [Can't save flow To save, fix 1 error. A flow or process named Variables-1 already exists.](https://trailhead.salesforce.com/trailblazer-community/feed/0D54S00000R9MRu)

A flow or process named Add_Generator_Product_to_Named_Opps-1 already exists

+ [Saved failed with A flow named New_Customer_Flow already exists](https://trailhead.salesforce.com/trailblazer-community/feed/0D54S00000A8cXlSAJ)

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/328136/b30c825b-e0e7-f29c-6f1e-f52c57b4e705.png)

# 権限セット

+ [ユーザー管理 - ユーザーがアクセスできるものを制御する ミュートされたアクセス許可を保存できません これを修正する方法](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007Z84id)

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/328136/8f568502-2e5c-b0fb-2fff-ca7b0578d0f8.png)


:::note
esterday after trying to figure it out i created a new trailhead playground and diconnected the old one and went ahead created the steps for the chapter and was able to comple the user management module of the trail head. I was able to save the muted permissions with given API name and save it in a new trailhead platform. 
:::


# lightning app builder

+ [Whenever i am trying to save in the lightning app builder it is Displaying an Error Developer name has to be unique??](https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007eoThD)

名前の変更の仕方

:::note
SETUP --> Lightning App Builder

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/328136/9db8ecfd-d75b-5c09-2b77-e8786a001606.png)
:::

# Customer Account Page のレコードページのアップグレード

+ [Receiving a "Developer name has to be unique" error](https://trailhead.salesforce.com/trailblazer-community/feed/0D5KX00000KfvUg)

:::note
There may already be a record page with the same API name. 
Try deleting or renaming it 

Goto Setup -->Lightning App Builder
:::

# Create a Custom Lightning Record Page

+ [There is an error message that keeps popping up when I try to finish this section of the training 'Create a Custom Lightning Record Page'](https://trailhead.salesforce.com/trailblazer-community/feed/0D5KX00000KgfxU)

:::note
There may already be a record page with the same name.


Goto Setup --> Lightning App Builder  

Try renaming or deleting the existing record page 

https://trailhead.salesforce.com/trailblazer-community/feed/0D5KX000000oFP9
:::