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Resolving the "Unable to create/update fields" Error in Salesforce Lightning Web Components (LWC)

The error message suggests that there is an issue with updating a specific field, "Opp_Submit_Date__c" in this case. The error points to a problem with field-level security settings or permissions. Let's dive into the steps to resolve this error.


Sample Error log --


UpdateRecordFunc Error -> {"status":400,"body":{"message":"An error occurred while trying to update the record. Please try again.","statusCode":400,"enhancedErrorType":"RecordError","output":{"errors":[],"fieldErrors":{"Opp_Submit_Date__c":[{"constituentField":null,"duplicateRecordError":null,"errorCode":"INVALID_FIELD_FOR_INSERT_UPDATE","field":"Opp_Submit_Date__c","fieldLabel":"Opportunity Submit Date","message":"Unable to create/update fields: Opp_Submit_Date__c. Please check the security settings of this field and verify that it is read/write for your profile or permission set."}]}}},"headers":{},"ok":false,"statusText":"Bad Request","errorType":"fetchResponse"}


Step 1: Check Field-Level Security Permissions:

  1. Log in to your Salesforce org and go to the Object Manager.

  2. Locate the object that contains the field "Opp_Submit_Date__c."

  3. Click on the field and check its Field-Level Security settings.

  4. Ensure that your profile or permission set has both "Read" and "Edit" permissions for the field.

Step 2: Add the Field to a Page Layout (Most Important):

Sometimes, even if you don't plan to display the field on a page layout, adding it temporarily to a layout for your profile can help resolve issues related to updating the field via code.





Step 3: Verify Field Accessibility:

Confirm that the field has the correct "Field Accessibility" settings. It should be marked as "Visible" for your profile.


Step 4: Profile and Permission Set Considerations:

Ensure you are using the correct profile or permission set when testing your LWC component. Permissions can vary depending on your specific profile or permission set.


The "Unable to create/update fields" error in Salesforce LWC can be frustrating, but it's usually related to field-level security settings or permissions. By following the steps outlined in this blog post, you should be able to resolve the error and continue building powerful Lightning Web Components to enhance your Salesforce experience.


Sometimes, if you are deploying your lwc component from one sandbox to another and your profile contain the necessary permissions but still you see this error, then you just need to add this field to the page layout. If you have multiple, add to any one which you have access to.


1 Comment


kate copper
kate copper
Nov 02, 2023

Thank you for this detailed guide on resolving the "Unable to create/update fields" error in Salesforce Lightning Web Components. This error message can indeed be a source of frustration for developers, and your step-by-step approach is incredibly helpful.

Thank you for sharing your insights and solutions. It will undoubtedly help many in the Salesforce certification navigate and overcome this common issue.


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