There are two ways in Salesforce which are used to call the batch class from another batch class are:<\/p>\n\n\n\n
- \n
- Using Queueable Apex<\/li>\n\n\n\n
- Using the Finish method of Batch class.<\/li>\n<\/ul>\n\n\n\n
Using this way, you can create the chaining between the batches.<\/p>\n\n\n\n
Note:<\/strong> If you call the batch class from the start or execute methods, then Salesforce throws the below error:
System.AsyncException: Database.executeBatch cannot be called from a batch start, batch execute, or future method.<\/p>\n\n\n\nAlso Read: How to Implement Salesforce SSO Using OAuth?<\/a><\/h4>\n\n\n
\n![\"batch](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/1-batch-execute-error.png\")
<\/figure><\/div>\n\n\nWhile calling batch from the start method there is an error:<\/p>\n\n\n
\n![\"execute](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/2-execute-method-of-batch.png\")
<\/figure><\/div>\n\n\nSame error while calling from the execute method of batch:<\/p>\n\n\n\n
Here is the complete definition of an error message:
![\"complete](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/3-complete-definition-of-error-message.png\")
Also Read: How To Connect Pipedrive and Salesforce Integration?<\/a><\/h4>\n\n\n\nThere Are Two Solutions for This Error:<\/strong><\/p>\n\n\n\n
<\/span>1. Using Queueable Apex:<\/span><\/h3>\n\n\n
\n![\"Queueable](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/4-Queueable-Apex.png\")
<\/figure><\/div>\n\n\n![\"using](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/5-using-Queueable-Apex.png\")
<\/figure><\/div>\n\n\n<\/span>2. Using the Finish Method of Batch Class:<\/span><\/h3>\n\n\n\n
Batch Class Example:<\/h4>\n\n\n
\n![\"Finish](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/6-Finish-Method-of-Batch-Class.png\")
<\/figure><\/div>\n\n\nglobal class BatchAccountUpdate implements Database.Batchable<sObject>, Database.Stateful, Database.AllowsCallouts {\n String query = 'Select Name from Account WHERE Name != null AND (Name = \\'Sapna Company\\' OR Name = \\'Sapna\\') ';\n global Database.QueryLocator start(Database.BatchableContext bc) {\n \/\/ collect the batches of records or objects to be passed to execute\n return Database.getQueryLocator(query);\n }\n \n global void execute(Database.BatchableContext bc, List<Account> records){\n \/\/ process each batch of records\n for(Account acc : records){\n acc.Name = acc.Name + ' - Updated';\n }\n update records;\n }\n \n global void finish(Database.BatchableContext bc){\n \/\/ execute any post-processing operations\n Note: We are calling Batch from Finish Method of Second batch.\n BatchUpdateAccountRelatedContacts b = new BatchUpdateAccountRelatedContacts();\n Database.executeBatch(b, 200);\n }\n }<\/code><\/pre>\n\n\n\n![\"hire](\"\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/hire-salesforce-developers-1.png\")
<\/a><\/figure><\/div>\n\n\nCalling from Schedule Class:<\/h4>\n\n\n\n
global class ScheduleBatchAccountUpdate implements Schedulable {\n global void execute(SchedulableContext sc) {\n BatchAccountUpdate b = new BatchAccountUpdate();\n database.executebatch(b);\n }\n }<\/code><\/pre>\n\n\n\nSecond Batch:<\/h4>\n\n\n\n
global class BatchUpdateAccountRelatedContacts implements Database.Batchable<sObject>, Database.Stateful, Database.AllowsCallouts {\n String query = 'Select FirstName, LastName, Email, Status__c from Contact WHERE\n FirstName != null AND LastName != null AND AccountId != null';\n global Database.QueryLocator start(Database.BatchableContext bc) {\n \/\/ collect the batches of records or objects to be passed to execute\n Note: Calling Queueable job for calling the next batchfor chaining.\n System.enqueueJob(new ExecuteBatchQueueableJob());\n return Database.getQueryLocator(query);\n }\n global void execute(Database.BatchableContext bc, List<Contact> records){\n \/\/ process each batch of records\n for(Contact con : records){\n con.Status__c = 'Discovery Call Complete';\n }\n update records;\n }\n global void finish(Database.BatchableContext bc){\n \/\/ execute any post-processing operations\n }\n<\/code><\/pre>\n\n\n\nQueueable Apex:<\/h4>\n\n\n\n
public class ExecuteBatchQueueableJob implements Queueable {\n public void execute(QueueableContext context) {\n try{\n BatchCalledThroughQueueable b = new BatchCalledThroughQueueable();\n Database.executeBatch(b, 200);\n }catch(Exception e){\n System.debug('@@@ Error Message : '+e.getMessage());\n }\n }\n }<\/code><\/pre>\n\n\n\nThird Batch:<\/h4>\n\n\n\n
global class BatchCalledThroughQueueable implements Database.Batchable<sObject>, Database.Stateful, Database.AllowsCallouts {\n String query = 'Select FirstName, LastName, Email, Status, Title from Lead WHERE FirstName != null AND LastName != null';\n global Database.QueryLocator start(Database.BatchableContext bc) {\n \/\/ collect the batches of records or objects to be passed to execute\n return Database.getQueryLocator(query);\n }\n global void execute(Database.BatchableContext bc, List<Lead> records){\n \/\/ process each batch of records\n for(Lead ld : records){\n ld.Title = ld.FirstName + ' - ' + ld.LastName;\n }\n update records;\n }\n global void finish(Database.BatchableContext bc){\n \/\/ execute any post-processing operations\n }\n }<\/code><\/pre>\n\n\n\nAlso Read: How to Create a Salesforce Lightning Map Component?<\/a><\/h4>\n\n\n\n
<\/span>Conclusion<\/span><\/h2>\n\n\n\n
We hope this guide has provided you with valuable insights and practical steps to enhance your Salesforce development projects. If you have any questions or require more in-depth guidance, don’t hesitate to contact our Salesforce Consultants<\/strong> <\/a>at Emizentech, one of the Best Salesforce Development Companies<\/a><\/strong>. Our team is dedicated to helping you achieve your development goals and ensure your Salesforce solutions are optimized for success. Contact us today for personalized assistance and expert solutions!<\/p>\n","protected":false},"excerpt":{"rendered":"
Managing large data sets and handling complex processes efficiently are key skills in Salesforce development. This helps improve performance and ensures a smooth experience for users. Our guide offers easy-to-follow tips if you’re new to Salesforce or looking to improve your skills. In Lightning Web Components (LWC) development, being able to dynamically style components is<\/p>\n","protected":false},"author":39,"featured_media":40493,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"MSN_Categories":"Uncategorized","MSN_Publish_Option":false,"MSN_Is_Local_News":false,"MSN_Is_AIAC_Included":"Empty","MSN_Location":"[]","MSN_Add_Feature_Img_On_Top_Of_Post":false,"MSN_Has_Custom_Author":false,"MSN_Custom_Author":"","MSN_Has_Custom_Canonical_Url":false,"MSN_Custom_Canonical_Url":"","_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[87],"tags":[],"class_list":{"0":"post-2562","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-salesforce-development"},"modified_by":"Marketing EmizenTech","featured_image_src":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/Invoke-Batch-Apex-From-Another-Batch-Apex-In-Salesforce-600x400.jpg","featured_image_src_square":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-content\/uploads\/sites\/2\/2020\/05\/Invoke-Batch-Apex-From-Another-Batch-Apex-In-Salesforce-600x408.jpg","author_info":{"display_name":"Virendra Sharma","author_link":"https:\/\/multisitelocal.ezxdemo.com\/blog\/author\/salesforce"},"_links":{"self":[{"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/posts\/2562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/comments?post=2562"}],"version-history":[{"count":0,"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/posts\/2562\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/media\/40493"}],"wp:attachment":[{"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/media?parent=2562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/categories?post=2562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/multisitelocal.ezxdemo.com\/blog\/wp-json\/wp\/v2\/tags?post=2562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}