diff --git a/internal/use-case/_plugin-template/modifier/modifire.go b/internal/use-case/_plugin-template/modifier/modifire.go
index c6696963..1c546e32 100644
--- a/internal/use-case/_plugin-template/modifier/modifire.go
+++ b/internal/use-case/_plugin-template/modifier/modifire.go
@@ -14,7 +14,7 @@ func ModifInput(input *e.Createdto, data *e.Single, tx *gorm.DB) error {
 
 // a sampel of utilizing transaction
 func CheckData(input *e.Createdto, data *e.Single, tx *gorm.DB) error {
-	tx.Where("name = ?", input.Name)
+	tx.Where("Name = ?", input.Name)
 	input.Name = "Prefix_" + input.Name
 	return nil
 }
diff --git a/internal/use-case/_use-case-template/crud/case.go b/internal/use-case/_use-case-template/crud/case.go
index 1c0e3aff..cf617ff7 100644
--- a/internal/use-case/_use-case-template/crud/case.go
+++ b/internal/use-case/_use-case-template/crud/case.go
@@ -7,6 +7,7 @@ package crud
 import (
 	dg "github.com/karincake/apem/db-gorm-pg"
 	d "github.com/karincake/dodol"
+	"gorm.io/gorm"
 
 	e "simrs-vx/internal/domain/main-entities/single"
 )
@@ -14,10 +15,25 @@ import (
 const source = "crud"
 
 func Create(input e.Createdto) (*d.Data, error) {
-	result, err := CreateData(input)
-	if err != nil {
-		return nil, err
-	}
+	err := dg.I.Transaction(func(tx *gorm.DB) error {
+		for i := range createPreMw {
+			if err := createPreMw[i](&input, &data, dg.I); err != nil {
+				return nil
+			}
+		}
+
+		if err := dg.I.Create(&data).Error; err != nil {
+			return nil
+		}
+
+		for i := range createPostMw {
+			if err := createPostMw[i](&input, &data, dg.I); err != nil {
+				return nil
+			}
+		}
+
+		return nil
+	})
 
 	return &d.Data{
 		Meta: d.II{
diff --git a/internal/use-case/_use-case-template/crud/lib.go b/internal/use-case/_use-case-template/crud/lib.go
index 0c774e0b..0283c7d8 100644
--- a/internal/use-case/_use-case-template/crud/lib.go
+++ b/internal/use-case/_use-case-template/crud/lib.go
@@ -7,28 +7,19 @@ import (
 	"gorm.io/gorm"
 )
 
-func CreateData(input e.Createdto) (*e.Single, error) {
+func CreateData(input e.Createdto, tx ...*gorm.DB) (*e.Single, error) {
 	data := e.Single{}
 
-	err := dg.I.Transaction(func(tx *gorm.DB) error {
-		for i := range createPreMw {
-			if err := createPreMw[i](&input, &data, dg.I); err != nil {
-				return nil
-			}
-		}
+	var db *gorm.DB
+	if tx != nil {
+		db = tx
+	} else {
+		db = dg.I
+	}
 
-		if err := dg.I.Create(&data).Error; err != nil {
-			return nil
-		}
-
-		for i := range createPostMw {
-			if err := createPostMw[i](&input, &data, dg.I); err != nil {
-				return nil
-			}
-		}
-
-		return nil
-	})
+	if err := dg.I.Create(&data).Error; err != nil {
+		return nil, err
+	}
 
 	return &data, err
 }