Need to remove the groups from the list based on another field value on Change Request form

[Arjun Reddy Yer]

Required help @Vasantharajan N @Ankur Bawiskar 

As I need to remove the groups from the list on Change Request Form

Change Request Form

when 

Condition 1. Assignment Group contains "GTO" or "SSHK"
OR
Condition 2. Affected BU contains "Group Office" or "SSHK"

AND

If condition #1 met and condition #2 NOT met, then do not add any of the below BU Owner Approval List :-
GROUP OFFICE-ONPREM-PLATFORM-OWNER-REPRESENTATIVE-APPROVER
GROUP OFFICE-NETWORK OWNER-REPRESENTATIVE-APPROVER
GROUP OFFICE-CLOUD OWNER-REPRESENTATIVE-APPROVER
GROUP OFFICE-END USER OWNER-REPRESENTATIVE-APPROVER

Need to push below mentioned groups to Approval List based on Affected Technology

Affected Technology          Groups

On-Prem Platform       = GTO-TS-CAB-CHG APPROVER
On-Prem Network      = GTO-TS-NETWORK CAB-CHG APPROVER
Cloud                            = GTO-TS-CLOUD CAB-CHG APPROVER

As off now created Business Rule to push the Groups to Approval List

By using below Business Rule I'm trying to push the value to Approval List field.

But I need to stop adding or if the group is added means then need to remove groups in BU Owner Approver List field

[Ankur Bawiskar]

@Arjun Reddy Yer 

so is the BR triggering?

[Arjun Reddy Yer]

BR is Pushing the value to Approval List requirement is to stop or if added means need to remove the groups from BU Owner Approver List

[Vasantharajan N]

@Arjun Reddy Yer  - What is the challenge that you are facing to build this requirement?. I don't see any technical challenge or complexity here. 

[Arjun Reddy Yer]

As need to stop adding or if added means need to remove below groups in BU Owner Approver List based on conditions

GROUP OFFICE-ONPREM-PLATFORM-OWNER-REPRESENTATIVE-APPROVER
GROUP OFFICE-NETWORK OWNER-REPRESENTATIVE-APPROVER
GROUP OFFICE-CLOUD OWNER-REPRESENTATIVE-APPROVER
GROUP OFFICE-END USER OWNER-REPRESENTATIVE-APPROVER