diff --git a/internal/use-case/main-use-case/encounter/case.go b/internal/use-case/main-use-case/encounter/case.go
index d387fcc2..9381e639 100644
--- a/internal/use-case/main-use-case/encounter/case.go
+++ b/internal/use-case/main-use-case/encounter/case.go
@@ -3,6 +3,7 @@ package encounter
 import (
 	"errors"
 	"fmt"
+	us "simrs-vx/internal/use-case/main-use-case/soapi"
 	"strconv"
 	"time"
 
@@ -489,6 +490,32 @@ func UpdateStatusCode(input e.UpdateStatusDto) (*d.Data, error) {
 			return pl.SetLogError(&event, input)
 		}
 
+		if input.StatusCode == erc.DSCCancel {
+			// TODO: Prevent cancellation if the billing has been verified
+
+			// TODO: Only "supervisi pendaftaran" could cancel encounter
+
+			// Prevent cancellation if soapi exist
+			encounterId := uint(input.Id)
+			dataSoapi, _, err := us.ReadListData(es.ReadListDto{
+				FilterDto: es.FilterDto{
+					Encounter_Id: &encounterId,
+				}}, &event, tx)
+			if err != nil {
+				return err
+			}
+
+			if len(dataSoapi) > 0 {
+				event.Status = "failed"
+				event.ErrInfo = pl.ErrorInfo{
+					Code:   "cancel-not-allowed",
+					Detail: "encounter can't be cancelled because SOAPI already exists",
+					Raw:    errors.New("encounter has SOAPI records"),
+				}
+				return pl.SetLogError(&event, input)
+			}
+		}
+
 		mwRunner := newMiddlewareRunner(&event, tx)
 		mwRunner.setMwType(pu.MWTPre)
 		// Run pre-middleware