IAgreementLifecycleCallback2 and IDynamicSectionCallback2

Contract Management on salesforce provides the following callback interfaces:

IAgreementLifecycleCallback2

The administrator can use this callback class to handle the Agreement lifecycle specific actions like afterCreate , afterClone, afterTerminate, afterAmend, and so on.

IDynamicSectionCallback2

The administrator can use this callback class to handle the dynamic section when an agreement document is generated.

To enable the callback interface for IAgreementLifecycleCallback2

Write a class implementing the Interface.
Overwrite the methods and write what you want to add in a specific action method.
Go to Setup > Custom Settings > Comply Custom Classes.
Create a New Entry.
Execute actual Action and check the log.
Create Apex Class implementing the Callback Interface.

Callback Methods Invoked

S.No	Callback Method	When is the callback method invoked
01	afterActivate	After Agreement is Activated
02	afterAmend	After Agreement is amended
03	afterCancel	After Agreement is canceled
04	afterClone	After Agreement is Cloned
05	afterComplete	Called After Every Action (ActionType is Sent as Parameter to the method)
06	afterCreate	After New Agreement is created
07	afterCreateChild	After New Child Agreement is Created
08	afterCreateExecuted	After create of Store Executed Agreement
09	afterCreateFromOpportunity	After New Agreement is created for Opportunity
10	afterCreateOffline	After offline Agreement is created
11	afterExpire	After Agreement is expired
12	afterRenew	After Agreement is Renewed
13	afterTerminate	After Agreement is Terminated

IAgreementLifecycleCallback2

global class APTS_CustomAgreementLifecycleCallback implements CustomClass.IAgreementLifecycleCallback2 {

    global void afterActivate(APTS_Agreement__c originalSO, CustomClass.ActivationType activationType){
        logMessage('Action after Activate' , 'After Activate');
    }
                
    global void afterAmend(APTS_Agreement__c originalSO, APTS_Agreement__c amendmentSO){
        logMessage('Action after Amend' , 'After Amend');
    }
    global void afterCancel(APTS_Agreement__c agreementSO){
        logMessage('Action after Cancel' , 'After Cancel');
    }
    global void afterClone(APTS_Agreement__c originalSO, APTS_Agreement__c cloneSO){
    	logMessage('Action after Clone' , 'After Clone');
    }
    global void afterComplete(APTS_Agreement__c agreementSO, CustomClass.ActionType actionType){
       logMessage('Action after Complete' , ''+actionType);
    }
    global void afterCreate(APTS_Agreement__c agreementSO){
        logMessage('Action after Create' , 'After Create');
    }
    global void afterCreateChild(APTS_Agreement__c parentSO, APTS_Agreement__c childSO){
         logMessage('Action after Create Child ' , 'After Create '+childSo);
    }
    global void afterCreateExecuted(APTS_Agreement__c agreementSO){
        logMessage('Action after Executed' , 'After Execute '+agreementSO);
    }
    global void afterCreateFromOpportunity(APTS_Agreement__c agreementSO){
        logMessage('Action after Create agreement from Opp' , 'After Create');
    }
    global void afterCreateOffline(APTS_Agreement__c agreementSO){ 
            logMessage('Action after Create offline' , 'After Create');
    }
    global void afterExpire(APTS_Agreement__c agreementSO){ 
            logMessage('Action after Expire' , 'After Expire');
    } 
    global void afterRenew(APTS_Agreement__c originalSO, APTS_Agreement__c renewalSO){
             logMessage('Action after Renew' , 'After Renew');
   
    }
    global void afterTerminate(APTS_Agreement__c agreementSO){ 
            logMessage('Action after Terminate' , 'After Terminate');
    }
    
    private void logMessage(String message , String action){
        System.debug('[LifecycleCallback ('+action+')] :'+message);
    }
}

CODE