Prototype object
Note: 'Prototype object' is not a recognized standard Salesforce term or feature.
Definition
Note: 'Prototype object' is not a recognized standard Salesforce term or feature. In general software development, a prototype refers to a preliminary version of a product or feature built to test concepts before full development. In the Salesforce context, if used informally, it may refer to a draft custom object created during the design phase of an application, but it has no official platform definition or specific behavior.
In plain English
“Prototype object isn't actually a recognized Salesforce term. In general software, a prototype means a preliminary version built to test concepts. If you hear it used in Salesforce, it probably refers informally to a draft custom object someone built during a design phase, but it has no official platform meaning.”
Worked example
A team at Yellowstone Trucking uses the informal phrase "prototype object" to describe the draft custom objects they sketch out during design workshops - Trip__c, Driver_Pairing__c, Fuel_Stop__c - before deciding which will actually ship. There's no formal Salesforce feature called Prototype Object; it's team shorthand for "we built this in a sandbox to validate the model, but it's not in production yet." After two design iterations, Driver_Pairing__c gets renamed to Crew_Assignment__c and Trip__c is merged with Route__c. The prototype objects are then either promoted to real production objects (with refined names and field sets) or thrown away - the throw-away cost is minimal because they only ever existed in a scratch org.
Why Prototype object matters
Prototype object is not a recognized standard Salesforce term or feature. In general software development, a prototype refers to a preliminary version of a product or feature built to test concepts before full development. In the Salesforce context, if used informally, it may refer to a draft custom object created during the design phase of an application, but it has no official platform definition or specific behavior.
If you encounter this term in Salesforce documentation or conversations, it's likely being used loosely to refer to a custom object built for prototyping or experimentation rather than as a defined platform concept. For clarity, Salesforce communications should use precise terminology like 'custom object built for prototyping' rather than 'prototype object', which doesn't have platform meaning.
How to create Prototype object
Prototype Object is a niche term — typically refers to creating a temporary, in-memory sObject in Apex without inserting it. The pattern: build a record, populate fields, use it as input to a method, never DML insert. Useful for tests, calculations, and feeding API methods that take an sObject parameter.
- In Apex, declare an sObject without inserting
Account proto = new Account(Name='Test', Industry='Tech'); — record exists in memory, not DB.
- Populate fields via constructor or assignment
new Account(Field1__c='value', Field2__c='value') OR a.Field3__c = 'value'; assign as needed.
- Use the prototype as input to methods that take sObject
Some APIs (Database.executeBatch, sharing logic, custom utility methods) take sObject parameters. Pass the prototype instead of querying / inserting.
- Optionally insert to commit
If the prototype is now ready to persist: insert proto; — DML this and it becomes a real record.
- Discard if not inserting
Prototypes left un-inserted are garbage-collected at transaction end. No cleanup needed.
- Prototypes don't have an Id until inserted. Code that expects record.Id fails with null on un-inserted prototypes — common bug in test code.
- Validation rules don't fire on prototypes. They only fire on DML — invalid data is allowed in memory but blocks insert.
- Lookup fields on prototypes need a real Id reference. Setting a.AccountId = '001...' must be a valid existing Account Id, or insert fails.
How organizations use Prototype object
Avoids using 'prototype object' terminology in favor of precise language like 'draft custom object for prototyping'.
When reviewing documentation that uses the term, clarifies that it's informal rather than an official Salesforce feature.
Trains developers on precise Salesforce terminology, avoiding ambiguous terms that don't map to platform concepts.
About the Author
Dipojjal Chakrabarti is a B2C Solution Architect with 29 Salesforce certifications and over 13 years in the Salesforce ecosystem. He runs salesforcedictionary.com to help admins, developers, architects, and cert/interview candidates sharpen their fundamentals. More about Dipojjal.
Test your knowledge
Q1. Is 'prototype object' an official Salesforce term?
Q2. What might it refer to informally?
Q3. What should you do if you encounter the term?
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