Field Level Security
Overview
Field Level Security, FLS, is a security feature within Salesforce that defines access at a read/write level to any particular field.
How Is Field Level Security Used?
FLS is used to determine access to a particular field at a read/write level. This is carried out on profiles. Utilizing other tools in salesforce you can continue to expand upon the base profile definition of access.
Permission sets allow you to add more field access to particular users on a case by case basis. Dynamic Pages will allow for you to hide/show field depending on the scenario you define.
What is the Benefit?
Security
When we think about things like Data Feeds and Integrations, Field Level Security is crucial in ensuring a sustainable and secure design for your Salesforce system.
By allowing an integration to only read/write the bare minimum in which it needs access to you add security and reduce the risk for bad master data management.
FLS allows you to do this without having to create multiple page layouts, and hidden reports.
Who is Impacted?
Salesforce Users
FLS determines what fields users can see and edit. Ensuring they can edit what is required and are protected from editing things they should not.
Integrations
Be it Mulesoft, DBAmp, SQLServer or any other integration options FLS allows Administrators to make sure fields that should NOT be exposed to the API are not (and vice versa). This is also true for fields that should or should not be editable.
Salesforce Administrators
FLS gives furthers administrators control over the environment, by providing granular control over who can do what.