System.TypeException: Cannot have more than 10 chunks in a single operation. Please rearrange the data to reduce chunking.

 System.TypeException: Cannot have more than 10 chunks in a single operation. Please rearrange the data to reduce chunking.

Cause:   

If  we are doing DML operation on collection of sobject in single operation.

1. More the 10 Sobjects 

List<Sobject> dmlList = new List<Sobject>();

dmlList.add(New Account (Name='Test'));

dmlList.add(New Contact (LastName='Test'));

dmlList.add(New Lead (Name='Test'));

dmlList.add(New opportunity (Name='Test'));

dmlList.add(New custom1__c (Name='Test'));

dmlList.add(New custom2__c (Name='Test'));

.

.

.

dmlList.add(New custom11__c (Name='Test'));

insert dmlList;

        2. Less than 10 Sobjects and  records in not in order

List<Sobject> dmlList = new List<Sobject>();

dmlList.add(New Account (Name='Test'));

dmlList.add(New Contact (LastName='Test'));

dmlList.add(New Lead (Name='Test'));

dmlList.add(New Account (Name='Test'));

dmlList.add(New Contact (LastName='Test'));

dmlList.add(New Lead (Name='Test'));

.

.

.

dmlList.add(New Account (Name='Test'));

dmlList.add(New Contact (LastName='Test'));

dmlList.add(New Lead (Name='Test'));

insert dmlList;

Solution:

SImply Use SORT() method

dmlList.sort();

insert dmlList;

(OR)

List<Sobject> dmlList = new List<Sobject>();

dmlList.add(New Account (Name='Test1'));

dmlList.add(New Account (Name='Test2'));

.

.

dmlList.add(New Account (Name='Test11'));

dmlList.add(New Lead (Name='Test1'));

dmlList.add(New Lead (Name='Test2'));

.

.

dmlList.add(New Lead (Name='Test11'));

dmlList.add(New Contact (LastName='Test1'));

dmlList.add(New Contact (LastName='Test2'));

..

..

dmlList.add(New Contact (LastName='Test11'));

insert dmlList;