API	Signature
submitForApprovalsWithComments	webService static Boolean submitForApprovalsWithComments(String sObjectType, Id sObjectId, Apttus_Approval.SubmissionComments comments)

Request Parameters
Name	Type	Required?	Description
sObjectId	ID	Yes	ID of the approval context object.
sObjectType	String	Yes	Type of the approval context object.
comments	Object	Yes	The SubmissionComments object.

Response Parameter
Name	Type	Description
result	Boolean	Returns true if the API is executed successfully.

// create process level submission comments 
SubmissionComments comments = new SubmissionComments();
comments.commentsLevel = SubmissionComments.PROCESS_LEVEL_COMMENTS;
comments.commentsCount = 1;
comments.processName = 'MyProcessName';
comments.processCommentLabel = 'MyProcessLabel';
comments.processCommentMandatory = false;
comments.processComment = 'Here is my submission comment';
// call submit with comments API
Apttus_Approval.ApprovalsWebService.submitForApprovalsWithAttachmentsAndComments('Apttus_APTS_Agreement_c', agmtId, comments);

SubmissionComments Class

/**
 *	Apttus Approvals Management
 *	SubmissionComments
 *	 
 *	@2010-2019 Apttus Inc. All rights reserved.
 */
global with sharing class SubmissionComments {
	
	public static final String PROCESS_LEVEL_COMMENTS = 'Process';
	public static final String STEP_LEVEL_COMMENTS = 'Step';
	
	// comments level
	public String commentsLevel = null;
	// comments count
	public Integer commentsCount = 1;
	
	// process name
	public String processName = null;
	// process comments label
	public String processCommentLabel = null;
	// process comment mandatory
	public Boolean processCommentMandatory = false;
	// process comments
	public String processComment = null;
	
	// step comments list
	public List<StepComment> stepCommentList = new List<StepComment>();
	
	/**
	 * Public constructor
	 */
	public SubmissionComments() {
		
	}
	
	/**
	 * Gets process name
	 */
	global String getProcessName() {
		return processName;
	}
	
	/**
	 * Gets process comment label
	 */
	global String getProcessCommentLabel() {
		return processCommentLabel;
	}
	
	/**
	 * Gets process comment
	 */
	global String getProcessComment() {
		return processComment;
	}
	
	/**
	 * Sets process comment
	 * @param comment
	 */
	global void setProcessComment(String comment) {
		this.processComment = comment;
	}
	
	/**
	 * Is comment at process level?
	 */
	global Boolean isProcessLevelComment() {
		return (PROCESS_LEVEL_COMMENTS == commentsLevel);
	}
	
	/**
	 * Sets process comment to manadatory
	 */
	global void setProcessCommentMandatory() {
		this.processCommentMandatory = true;
	}
	
	/**
	 * Is comment at process level mandatory?
	 */
	global Boolean isProcessLevelCommentMandatory() {
		return processCommentMandatory;
	}
	
	/**
	 * Is comment at step level?
	 */
	global Boolean isStepLevelComment() {
		return (STEP_LEVEL_COMMENTS == commentsLevel);
	}
	
	/**
	 * Get comments count - max of 3 at step-level and 1 at process-level
	 */
	global Integer getCommentsCount() {
		return commentsCount;
	}
	
	/**
	 * Gets step comment list
	 */
	global List<StepComment> getStepCommentList() {
		return stepCommentList;
	}
	
	/**
	 * Add stepComment to list
	 * @param comment
	 */
	global void addStepComment(StepComment comment) {
		stepCommentList.add(comment);
	}
	
	/**
	 * Creates the json representation of the submission comments
	 * @return the json string
	 */
	global String toJSON() {
		// get the json representation
		return System.JSON.serializePretty(this);
       	
	}
    
 	/**
	 * Parses the submission comments object from the given JSON string
	 * @param jsonString the json string to parse
 	 * @return the submission comments data object
	 */
	global static SubmissionComments parse(String jsonString) {
		// load the class (salesforce class loading bug)
        System.Type wrapperType = System.Type.forName(SystemUtil.getFQClassName('SubmissionComments')); 
        // deserialize the object
        return (SubmissionComments) System.Json.deserialize(jsonString, SubmissionComments.class);
			
	}
	
 	/**
	 * Inner class to hold step level comments
	 */
	global class StepComment {
		
		// step name
		public String stepName = null;
		// step comment label
		public String stepCommentLabel = null;
		// step comments
		public String stepComment = null;
		
		/**
		 * Public constructor
		 */
		public StepComment() {
			
		}
		
		/**
		 * Gets step name
		 */
		global String getStepName() {
			return stepName;
		}
		
		/**
		 * Gets step comment label
		 */
		global String getStepCommentLabel() {
			return stepCommentLabel;
		}
		
		/**
		 * Gets step comment
		 */
		global String getStepComment() {
			return stepComment;
		}
		
		/**
		 * Set step comment
		 * @param comment 
		 */
		global void setStepComment(String comment) {
			this.stepComment = comment;
		}	
	}
	
}