diff --git a/openframe/docs/mysql-multitenancy-feature.md b/openframe/docs/mysql-multitenancy-feature.md
index ddc7dcb21b5..36eea6223aa 100644
--- a/openframe/docs/mysql-multitenancy-feature.md
+++ b/openframe/docs/mysql-multitenancy-feature.md
@@ -66,8 +66,10 @@ role-authz grouping upstream; here it is a hard boundary regardless of token rol
   the minor getters `HostLiteByIdentifier`/`HostLiteByID`, `ListHostsLiteByIDs`, `HostIDsByIdentifier`.
   Deliberately **unfenced**: `HostByUUID` (pre-auth iDevice identity lookup — no pin yet).
 - **policies** — list/count/by-id (`Policy`, `PolicyLite`, `PoliciesByID`), create→pinned, save
-  (verify-on-primary), delete (filter foreign ids); service-layer `DeleteGlobalPolicies` treats an
-  own-pinned-team policy as deletable (creation re-homes policies to the team).
+  (verify-on-primary), delete (filter foreign ids); service-layer `DeleteGlobalPolicies` and
+  `modifyPolicy` (the global modify endpoint) treat an own-pinned-team policy as global — creation
+  re-homes "global" policies to the pinned team, so the tenant UI's global endpoints must accept
+  them back.
 - **queries** — list/by-id/name, create→pinned, save-verify, delete, `ApplyQueries` re-home.
 - **enroll_secrets** (`app_configs.go`) — `GetEnrollSecrets`/`ApplyEnrollSecrets` force `teamID =
   pinned`; `VerifyEnrollSecret` only accepts a secret whose `team_id = pinned` (agent boundary).
diff --git a/server/service/global_policies_openframe_test.go b/server/service/global_policies_openframe_test.go
index a222f2f9894..b739a505912 100644
--- a/server/service/global_policies_openframe_test.go
+++ b/server/service/global_policies_openframe_test.go
@@ -69,3 +69,62 @@ func TestOpenframeDeleteGlobalPoliciesPinnedTeam(t *testing.T) {
 		require.NoError(t, err)
 	})
 }
+
+// TestOpenframeModifyGlobalPolicyPinnedTeam verifies the OPENFRAME(mysql-multitenancy) adjustment
+// in modifyPolicy: the tenant UI edits policies through the global endpoint, but creation re-homed
+// them to the pinned team, so under a pin the upstream "policy does not belong to team/global"
+// check must let own-team policies through. Foreign-team policies still reject, and unpinned
+// behavior is unchanged.
+func TestOpenframeModifyGlobalPolicyPinnedTeam(t *testing.T) {
+	const pinnedTeam = uint(7)
+
+	newSvc := func(policyTeamID *uint) (fleet.Service, context.Context) {
+		ds := new(mock.Store)
+		ds.PolicyFunc = func(ctx context.Context, id uint) (*fleet.Policy, error) {
+			return &fleet.Policy{PolicyData: fleet.PolicyData{ID: id, TeamID: policyTeamID, Query: "SELECT 1"}}, nil
+		}
+		ds.SavePolicyFunc = func(ctx context.Context, p *fleet.Policy, shouldRemoveAllPolicyMemberships bool, removePolicyStats bool) error {
+			return nil
+		}
+		ds.AppConfigFunc = func(ctx context.Context) (*fleet.AppConfig, error) {
+			return &fleet.AppConfig{}, nil
+		}
+		svc, ctx := newTestService(t, ds, nil, nil)
+		ctx = viewer.NewContext(ctx, viewer.Viewer{User: &fleet.User{GlobalRole: ptr.String(fleet.RoleAdmin)}})
+		return svc, ctx
+	}
+
+	payload := fleet.ModifyPolicyPayload{Name: ptr.String("renamed")}
+
+	t.Run("pinned: own-team policy modifies through the global endpoint", func(t *testing.T) {
+		svc, ctx := newSvc(ptr.Uint(pinnedTeam))
+		ctx = fleet.NewOpenframeTeamContext(ctx, pinnedTeam)
+
+		policy, err := svc.ModifyGlobalPolicy(ctx, 1, payload)
+		require.NoError(t, err)
+		require.Equal(t, "renamed", policy.Name)
+	})
+
+	t.Run("pinned: foreign-team policy still rejects", func(t *testing.T) {
+		svc, ctx := newSvc(ptr.Uint(pinnedTeam + 1))
+		ctx = fleet.NewOpenframeTeamContext(ctx, pinnedTeam)
+
+		_, err := svc.ModifyGlobalPolicy(ctx, 1, payload)
+		require.Error(t, err, "foreign-team policy must keep the bad-request reject")
+	})
+
+	t.Run("unpinned: team policy rejects (upstream behavior unchanged)", func(t *testing.T) {
+		svc, ctx := newSvc(ptr.Uint(pinnedTeam))
+
+		_, err := svc.ModifyGlobalPolicy(ctx, 1, payload)
+		require.Error(t, err, "unpinned team-policy modify must keep upstream's reject")
+	})
+
+	t.Run("unpinned: global (nil-team) policy modifies fine", func(t *testing.T) {
+		svc, ctx := newSvc(nil)
+
+		policy, err := svc.ModifyGlobalPolicy(ctx, 1, payload)
+		require.NoError(t, err)
+		require.Equal(t, "renamed", policy.Name)
+	})
+}
diff --git a/server/service/team_policies.go b/server/service/team_policies.go
index 76c08178319..3177d3cda56 100644
--- a/server/service/team_policies.go
+++ b/server/service/team_policies.go
@@ -602,7 +602,19 @@ func (svc *Service) modifyPolicy(ctx context.Context, teamID *uint, id uint, p f
 		return nil, err
 	}
 
-	if ok := checkTeamID(teamID, policy); !ok {
+	ok := checkTeamID(teamID, policy)
+	// >>> OPENFRAME(mysql-multitenancy): under a per-request tenant pin the tenant's own policies
+	// carry the pinned team id (creation re-homes "global" policies to the pinned team), so from
+	// the tenant's perspective an own-team policy IS a global policy — the global modify endpoint
+	// must accept it. Same allowance as DeleteGlobalPolicies. Foreign policies never reach here:
+	// the fenced ds.Policy above already returned NotFound for them. Unpinned (flag off) keeps
+	// upstream's exact check.
+	if !ok && teamID == nil && policy.TeamID != nil {
+		pinned, pinnedOK := fleet.OpenframeTeamID(ctx)
+		ok = pinnedOK && *policy.TeamID == pinned
+	}
+	// <<< OPENFRAME(mysql-multitenancy)
+	if !ok {
 		return nil, ctxerr.Wrap(ctx, &fleet.BadRequestError{
 			Message:     "policy does not belong to team/global",
 			InternalErr: fmt.Errorf("teamID: %+v, policy: %+v", teamID, policy),