Integrate Comments in K2 Studio Workflow Task Form + SharePoint 2013

Hi RamKumar,

Please follow steps below to achieve your requirements:

I created  two steps approval process:

you will need to transfer the process instance ID to a data field when the workflow starts:

Assign the source and the destination

Create the following items in order to Add/View the comments

let's start with the views

1- workflow Comment Item 

2- Workflow Comment List

Notice That I added a data label on the top of the list (make it invisible)

The start form:

Notice That I added Data label on the top of the form (make it invisible)

Add the following rule on the Start Form:

the previous rule is configured as the following:

In the first action "Start Workflow" I need to retrieve the process ID to the data label I have on my form:

In the last action I check if the comment area is not empty to insert the comment "add new record to workflow comments table" :

Notice that I pass the data label I have on my form which contains the process ID to Process instance ID 

we are done from the firs form.

lets check how to get the comments in the approval form

I have Comments list and Comment Item views on this form

the submit button to approve and create another comment if exists

here are the rules I have on this form:

When the form Initialize rule is configured as the following:

the first two actions as we know they are automatically generated. we just need to pass the data field(Process Instance ID) from the workflow to the form to be able to list the comments related to specific instance:

configure the open actions as the following:

drag the data field to the data lable you added on the lis tview

and now execute Get List Method of the Workflow Comments SO 

drag the data label from the list view which contains the process instance ID to the process instance ID (input property)

Test Results:

First Approval:

Second Approval:

I made this tutorial upon your request, it's similar to the tutorial here, 

Note: My views are generated from the default SO provided by K2 "Workflow Comments" service.

Please let me know if you have any further questions :)