Create following scheme for JIRA Schema for C1 Roadmap.

[Maktumhusain Taseeladar]

We would like create following scheme for JIRA Schema for C1 Roadmap.

We are not able to create Child relationship in the project.

• EPIC1
  • Feature1 – max 8 weeks
    • Story1 – max 3 week
      • Tasks1 –  max 1 day
      • Tasks 2 – max 1 day
    • Story2
  • Feature2
  • Feature3

Example

• EPIC1 => Migration to RH 8.6
  • Feature1  => OMNI migration to RH 8.6
    • Story1 => Testable OMNI delivered RH 8.6 – Ph1
      • Tasks 1 => Change the compile options
      • Tasks 2 =>  Remove LIS option from Dir
    • Story2=> Testable IPF delivered RH 8.6 – Ph2
    •  
  • Feature2=>Voice SLU Migration to RH 8.6
  • Feature3

[Trudy Claspill]

Hello @Maktumhusain Taseeladar 

Are you using a Standard or Premium subscription of Jira Cloud?

Be advised that only the Premium subscription includes Advanced Roadmaps which enables you to extend the issue hierarchy upwards only above the Epic level. The functionality does not support adding hierarchy levels below Epic.

The default hierarchy is

Epic > general issue types (Story, Task, Bug, etc.) > Sub-task

Also, where you are showing "Task" you would have to use a Sub-task type of issue

[Maktumhusain Taseeladar]

We are using  Premium subscription of Jira Cloud. Thanks, 

[Trudy Claspill]

Here is a link to the documentation about creating custom issue hierarchies in the Jira Software Premium subscription.

https://support.atlassian.com/jira-software-cloud/docs/configure-custom-hierarchy-levels-in-advanced-roadmaps/