What are the required fields for each relevant object type?

”Id” and “Last Modified Date” are required fields for all object types.

Object Type	Field Label	Field Name
Account	Account Name	Name
	Account Owner	OwnerId
	Active	Active__c
	Phone	Phone
	Website	Website
	Industry	Industry
	Annual Revenue	AnnualRevenue
	Type	Type
Contact	Name	Name
	Contact Owner	OwnerId
	Account Name	AccountId
	Title	Title
	Email	Email
	Phone	Phone
Opportunity	Opportunity Name	Name
	Opportunity Owner	OwnerId
	Account Name	AccountId
	Stage	StageName
	Amount	Amount
	Close Date	CloseDate
Lead	Lead Name	Name
	First Name	FirstName
	Last Name	LastName
	Title	Title
	Status	Status
	Company	Company
	Industry	Industry
	Phone	Phone
	Email	Email
	Website	Website
	Rating	Rating
	Lead Source	LeadSource
	Lead Owner	OwnerId