Custom Access Request Type

@dulalsatish1 if you mean by how to show custom access request ? then you have to follow below steps.

a. add entry in SailPointClassicBundle.js
     - "retainaccount", "ui_identity_requests_retain_account" // add this entry in request
b. add entry in iiqCustomMessage.properties (WEB-INF/classes/sailpoint/web/messages)
     - ui_identity_requests_retain_account=Retain Account Request // for UI
     - request_type_retain_account=Retain Account Request // For Filter in Track my request
c. add entry in system configuration
    - added to the accessRequestTypes entry in the SystemConfiguration object
       - retainaccount // added this as String

Some links:

Custom RequestType not displayed correctly in UI - IdentityIQ (IIQ) / IIQ Discussion and Questions - SailPoint Developer Community

Solved: custom “flow” variable in workflow - Compass