understanding multiple level approval management

Question

Hi All, 
 am new to appain, i want to understand how to accomplish multiple level approval using appian (interface grid), 
 something like 
 levels approval1 approval2 approval3 approval4 
 1 user1 user2 user3 user4 
 2 user1 user2 user3 user4 
 3 user1 user2 user3 user4 
 
 this is the grid layout, now how to iterate through rows and perform some activities in process model. 
 
 Thanks in advance

Dude · Answer

vineethk0001 
 You can achieve this by creating a process flow for the level-1, then you can use MNI (Multi Node Instance) for each level or Start Process or looping can be done but its not recommended. 
 You can achieve this as follows 
 Create a process (lets say Approval Task Assignment ) for assigning tasks to different users. If its sequential use approval one after the other or if its parallel use MNI. 
 Create a process (Initiate Approval Tasks) configure above process using Start Process Node (or You can configure Sub-process, but it leads to performance issues.). Set the MNI 
 Note: 
 If the each level has dependency you have to follow the sequential process otherwise use MNI 
 In the above explanation, I have taken only two processes, the number might change depending on how you want to modularize your processes.