how to configure Custom approval Field in custom work type in Jira cloud - Team managed board?

[Shruti Kulkarni]

Hi, we have created an Ops Project / Space and introduced a new Access Request work item type in Jira, which users can use to raise access-related requests. Before the assigned developer begins work on these requests, we want them to be approved by a designated group of approvers.

To support this, we would like to add a Custom Approver field with two dropdown options:

Manager Group (a group of 3–4 managers)

Architect Group (a group of architects)

Based on the selected option, the request should be routed for approval to the corresponding group and Email notification to be sent to these members in the group
Could you please advise on how to configure this approval mechanism in Jira cloud - Team managed board?