Location Conditional Field Record For Free

Setup ---> Customize ---> Objects ---> Page Layouts ---> Edit the page layout ---> Select the field you want to make read-only ---> Click on 'Properties' of the field(an icon to the right end of field) ---> Here you will get a checkbox to make the field read only.

The only way to do this is with VisualForce. You will have to have code in your controller that determines if the field is an outputfield (read only) or an inputfield (read / write). Then you'll need to call a reRender on the fields on change the dropdown. This blog post may give you some help for this.

3 Answer(s) Go to the object's field page under Setup. Click on the view link for the field. Click the Set Field-Level Security button. Change the field to read-only for the appropriate profiles (You would need to change to appropriate profile to test)

How to make field non-editable in Salesforce? Go to the page layout. Click the Field Properties in the page layout. Make it Read-Only.

Create validation rule in Salesforce Classic Click Setup. Click Customize | [the object you need to modify] | Validation Rules. Click New. Enter the Validation Rule name. Set the Validation Formula as per the suggestion above, feel free to adapt to your needs. Set the error message that the User will receive.

Create validation rule in Salesforce Classic Click Setup. Click Customize | [the object you need to modify] | Validation Rules. Click New. Enter the Validation Rule name. Set the Validation Formula as per the suggestion above, feel free to adapt to your needs. Set the error message that the User will receive.

Conditional fields allow you to manage sets of dependencies between fields. Such fields are available for editing and display only if the right condition is met. To create conditional fields, you must first create custom fields and then leverage such fields in forms.

Edit the Lightning page layout by clicking on the Setup gear in the upper-right-hand corner, and select Edit Page. Add the conditions to the related record lightning component. Click on the component, then select Add Filter to input filter criteria. Select save.