diff --git a/backend/src/services/organizationService.ts b/backend/src/services/organizationService.ts
index 0db9800dda..e25227a79d 100644
--- a/backend/src/services/organizationService.ts
+++ b/backend/src/services/organizationService.ts
@@ -19,7 +19,7 @@ import {
   mergeObjects,
   normalizeHostname,
 } from '@crowd/common'
-import { signalMemberUpdate, unmergeRoles } from '@crowd/common_services'
+import { roleExistsInArray, signalMemberUpdate, unmergeRoles } from '@crowd/common_services'
 import {
   addMemberRole,
   moveMembersBetweenOrganizations,
@@ -416,13 +416,10 @@ export default class OrganizationService extends LoggerBase {
               // check if anything to delete in primary
               const rolesToDelete = memberOrganizations.filter(
                 (r) =>
-                  r.source !== 'ui' &&
-                  !primaryUnmergedRoles.some(
-                    (pr) =>
-                      pr.memberId === r.memberId &&
-                      pr.title === r.title &&
-                      pr.dateStart === r.dateStart &&
-                      pr.dateEnd === r.dateEnd,
+                  !roleExistsInArray(
+                    r,
+                    primaryUnmergedRoles,
+                    MemberRoleUnmergeStrategy.SAME_ORGANIZATION,
                   ),
               )
 
diff --git a/services/libs/common_services/src/services/member-organization.ts b/services/libs/common_services/src/services/member-organization.ts
index 7e53b4302b..07ba071984 100644
--- a/services/libs/common_services/src/services/member-organization.ts
+++ b/services/libs/common_services/src/services/member-organization.ts
@@ -4,6 +4,7 @@ import {
   MemberOrgDate,
   MemberOrgStintChange,
   MemberRoleUnmergeStrategy,
+  OrganizationSource,
 } from '@crowd/types'
 
 function roleKey(
@@ -16,7 +17,12 @@ function roleKey(
   return role.memberId
 }
 
-function roleExistsInArray(
+function isSameDate(a: Date | string | null, b: Date | string | null): boolean {
+  if (!a || !b) return !a && !b
+  return new Date(a).getTime() === new Date(b).getTime()
+}
+
+export function roleExistsInArray(
   role: IMemberOrganization,
   roles: IMemberOrganization[],
   strategy: MemberRoleUnmergeStrategy,
@@ -26,8 +32,8 @@ function roleExistsInArray(
     (r) =>
       roleKey(r, strategy) === key &&
       r.title === role.title &&
-      r.dateStart === role.dateStart &&
-      r.dateEnd === role.dateEnd,
+      isSameDate(r.dateStart, role.dateStart) &&
+      isSameDate(r.dateEnd, role.dateEnd),
   )
 }
 
@@ -59,15 +65,19 @@ export function unmergeRoles(
   secondaryBackupRoles: IMemberOrganization[],
   strategy: MemberRoleUnmergeStrategy,
 ): IMemberOrganization[] {
-  const unmergedRoles: IMemberOrganization[] = mergedRoles.filter(
-    (role) =>
-      role.source === 'ui' ||
-      !secondaryBackupRoles.some((r) => roleKey(r, strategy) === roleKey(role, strategy)),
+  const cameFromSecondary = (role: IMemberOrganization) =>
+    roleExistsInArray(role, secondaryBackupRoles, strategy) &&
+    !roleExistsInArray(role, primaryBackupRoles, strategy)
+
+  const unmergedRoles: IMemberOrganization[] = mergedRoles.filter((role) =>
+    role.source === OrganizationSource.UI
+      ? !cameFromSecondary(role)
+      : !secondaryBackupRoles.some((r) => roleKey(r, strategy) === roleKey(role, strategy)),
   )
 
   const editableRoles = mergedRoles.filter(
     (role) =>
-      role.source !== 'ui' &&
+      role.source !== OrganizationSource.UI &&
       secondaryBackupRoles.some((r) => roleKey(r, strategy) === roleKey(role, strategy)),
   )
 
diff --git a/services/libs/common_services/src/services/member/unmerge.ts b/services/libs/common_services/src/services/member/unmerge.ts
index 43f4baa3b5..81c3c9c9a4 100644
--- a/services/libs/common_services/src/services/member/unmerge.ts
+++ b/services/libs/common_services/src/services/member/unmerge.ts
@@ -59,10 +59,11 @@ import {
   MergeActionState,
   MergeActionStep,
   MergeActionType,
+  OrganizationSource,
 } from '@crowd/types'
 
 import { BotDetectionService } from '../bot.service'
-import { unmergeRoles } from '../member-organization'
+import { roleExistsInArray, unmergeRoles } from '../member-organization'
 
 const logger = getServiceLogger()
 
@@ -591,16 +592,13 @@ export async function unmergeMember(
     const memberOrganizationsMap = await fetchManyMemberOrgsWithOrgData(tx, [memberId])
     const memberOrganizations = memberOrganizationsMap.get(memberId) ?? []
 
+    const isRoleIn = (role: IMemberRoleWithOrganization, roles: IMemberRoleWithOrganization[]) =>
+      roleExistsInArray(role, roles, MemberRoleUnmergeStrategy.SAME_MEMBER)
+
     rolesToDelete = memberOrganizations.filter(
       (r) =>
-        r.source !== 'ui' &&
-        !primary.memberOrganizations.some(
-          (pr) =>
-            pr.organizationId === r.organizationId &&
-            pr.title === r.title &&
-            pr.dateStart === r.dateStart &&
-            pr.dateEnd === r.dateEnd,
-        ),
+        !isRoleIn(r, primary.memberOrganizations) &&
+        (r.source !== OrganizationSource.UI || isRoleIn(r, secondary.memberOrganizations)),
     )
 
     for (const role of rolesToDelete) {