diff --git a/backend/main.go b/backend/main.go
index 29fac77..adc0657 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -31,7 +31,7 @@ func getCORSConfig(env string) cors.Config {
 	case "dev":
 		return cors.Config{
 			AllowOrigins:     []string{"http://localhost:5173"},
-			AllowMethods:     []string{"GET", "POST", "OPTIONS"},
+			AllowMethods:     []string{"GET", "POST", "OPTIONS", "DELETE"},
 			AllowHeaders:     []string{"Origin", "OCBO-Token", "Content-Length", "Content-Type", "X-Server"},
 			ExposeHeaders:    []string{"Content-Length"},
 			AllowCredentials: true,
@@ -39,7 +39,7 @@ func getCORSConfig(env string) cors.Config {
 	case "prod":
 		return cors.Config{
 			AllowOrigins: []string{"https://ocboapps.davaocity.gov.ph", "https://esign.patalcala.com"},
-			AllowMethods: []string{"GET", "POST", "OPTIONS"},
+			AllowMethods: []string{"GET", "POST", "OPTIONS", "DELETE"},
 			// AllowHeaders:     []string{"Origin", "OCBO-Token", "Content-Length", "Content-Type", "X-Server", "Authorization"},
 			AllowHeaders:     []string{"*"},
 			ExposeHeaders:    []string{"Content-Length"},
@@ -1419,7 +1419,7 @@ func connect() {
 				"result": result,
 			})
 
-    case "get-totalamount-electrical":
+		case "get-totalamount-electrical":
 			err := db.QueryRow(`SELECT IFNULL(SUM(amount), 0) AS result FROM electrical_orderofpayment_new WHERE electricalid = (SELECT electricalid FROM electrical WHERE electricalNo = ?)`, data).Scan(&result)
 			if err != nil {
 				c.AbortWithError(http.StatusBadRequest, err)
@@ -1430,8 +1430,19 @@ func connect() {
 				"result": result,
 			})
 
-    case "check-popsrecord":
-			err := dbpop.QueryRow("SELECT COUNT(OrderPayId) AS result FROM orderpaydetail WHERE oprefid = ?" , data).Scan(&result)
+		case "check-popsrecord":
+			err := dbpop.QueryRow("SELECT COUNT(OrderPayId) AS result FROM orderpaydetail WHERE oprefid = ?", data).Scan(&result)
+			if err != nil {
+				c.AbortWithError(http.StatusBadRequest, err)
+				c.String(http.StatusBadRequest, err.Error())
+				return
+			}
+			c.JSON(http.StatusOK, gin.H{
+				"result": result,
+			})
+
+		case "get-opdata-electrical":
+			err := db.QueryRow(`SELECT IFNULL(CONCAT(electricalid, '-', assessedbyid, '-', reviewedbyid, '-', SUM(ref_bldgcomputationsheetid), '-', SUM(amount)),'') AS result FROM electrical_orderofpayment_new WHERE electricalid = (SELECT electricalid FROM electrical WHERE electricalNo = ?)`, data).Scan(&result)
 			if err != nil {
 				c.AbortWithError(http.StatusBadRequest, err)
 				c.String(http.StatusBadRequest, err.Error())
@@ -2265,5 +2276,221 @@ func connect() {
 
 	})
 
+	router.POST("/api/save-lockdata", middleware.TokenChecker(), func(c *gin.Context) {
+		type saveLockData struct {
+			Data  string `json:"data"`  //referenceNo
+			Data2 string `json:"data2"` //lock_data
+		}
+		var savelockData saveLockData
+		if err := c.ShouldBindJSON(&savelockData); err != nil {
+			c.String(http.StatusBadRequest, "Invalid request body")
+			return
+		}
+
+		c.Writer.Header().Set("X-XSS-Protection", "1; mode=block")
+		c.Writer.Header().Set("X-Content-Type-Options", "nosniff")
+		c.Writer.Header().Set("X-DNS-Prefetch-Control", "off")
+		c.Writer.Header().Set("X-Frame-Options", "DENY")
+		c.Writer.Header().Set("X-Download-Options", "noopen")
+		c.Writer.Header().Set("Referrer-Policy", "no-referrer")
+		c.Writer.Header().Set("Content-Security-Policy", "default-src 'self'; img-src 'self';")
+		c.Writer.Header().Set("X-Server", "OCBO Server")
+
+		dbpost, err := db.Prepare("INSERT INTO esign_lock (esign_lockid, ?, ?)")
+		if err != nil {
+			c.AbortWithError(http.StatusInternalServerError, err)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+		defer dbpost.Close()
+
+		exec, err := dbpost.Exec(savelockData.Data, savelockData.Data2)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		affect, err := exec.RowsAffected()
+		if err != nil {
+			panic(err.Error())
+		}
+
+		if affect > 0 {
+			c.String(http.StatusOK, "Success on Saving Lock Data")
+		} else {
+			c.String(http.StatusInternalServerError, "Failed on Saving Lock Data")
+		}
+	})
+
+	router.DELETE("/api/delete-orderofpayment-electrical", middleware.TokenChecker(), func(c *gin.Context) {
+		type DeleteOP struct {
+			Data int `json:"data"`
+		}
+		var deleteOp DeleteOP
+		if err := c.ShouldBindJSON(&deleteOp); err != nil {
+			c.String(http.StatusBadRequest, "Invalid request body")
+			return
+		}
+
+		c.Writer.Header().Set("X-XSS-Protection", "1; mode=block")
+		c.Writer.Header().Set("X-Content-Type-Options", "nosniff")
+		c.Writer.Header().Set("X-DNS-Prefetch-Control", "off")
+		c.Writer.Header().Set("X-Frame-Options", "DENY")
+		c.Writer.Header().Set("X-Download-Options", "noopen")
+		c.Writer.Header().Set("Referrer-Policy", "no-referrer")
+		c.Writer.Header().Set("Content-Security-Policy", "default-src 'self'; img-src 'self';")
+		c.Writer.Header().Set("X-Server", "OCBO Server")
+
+		var isPaid int
+		checkErr := db.QueryRow("SELECT is_paid FROM electrical_orderofpayment_new WHERE electricalid = ?", deleteOp.Data).Scan(&isPaid)
+		if checkErr != nil {
+			c.AbortWithError(http.StatusInternalServerError, checkErr)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+
+		if isPaid == 1 {
+			c.String(http.StatusBadRequest, "Order of Payment has Already been Paid")
+			return
+		}
+
+		dbpost, err := db.Prepare("DELETE FROM electrical_orderofpayment_new WHERE electricalid = ? AND is_paid = 0")
+		if err != nil {
+			c.AbortWithError(http.StatusInternalServerError, err)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+		defer dbpost.Close()
+
+		exec, err := dbpost.Exec(deleteOp.Data)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		affect, err := exec.RowsAffected()
+		if err != nil {
+			panic(err.Error())
+		}
+
+		if affect > 0 {
+			c.String(http.StatusOK, "Success on Deleting Order of Payment")
+		} else {
+			c.String(http.StatusInternalServerError, "Failed on Deleting Order of Payment")
+		}
+	})
+
+	router.DELETE("/api/delete-orderofpayment-occupancy", middleware.TokenChecker(), func(c *gin.Context) {
+		type DeleteOP struct {
+			Data int `json:"data"`
+		}
+		var deleteOp DeleteOP
+		if err := c.ShouldBindJSON(&deleteOp); err != nil {
+			c.String(http.StatusBadRequest, "Invalid request body")
+			return
+		}
+
+		c.Writer.Header().Set("X-XSS-Protection", "1; mode=block")
+		c.Writer.Header().Set("X-Content-Type-Options", "nosniff")
+		c.Writer.Header().Set("X-DNS-Prefetch-Control", "off")
+		c.Writer.Header().Set("X-Frame-Options", "DENY")
+		c.Writer.Header().Set("X-Download-Options", "noopen")
+		c.Writer.Header().Set("Referrer-Policy", "no-referrer")
+		c.Writer.Header().Set("Content-Security-Policy", "default-src 'self'; img-src 'self';")
+		c.Writer.Header().Set("X-Server", "OCBO Server")
+
+		var isPaid int
+		checkErr := db.QueryRow("SELECT is_paid FROM occupancy_orderofpayment WHERE occupancyid = ?", deleteOp.Data).Scan(&isPaid)
+		if checkErr != nil {
+			c.AbortWithError(http.StatusInternalServerError, checkErr)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+
+		if isPaid == 1 {
+			c.String(http.StatusBadRequest, "Order of Payment has Already been Paid")
+			return
+		}
+
+		dbpost, err := db.Prepare("DELETE FROM occupancy_orderofpayment WHERE occupancyid = ? AND is_paid = 0")
+		if err != nil {
+			c.AbortWithError(http.StatusInternalServerError, err)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+		defer dbpost.Close()
+
+		exec, err := dbpost.Exec(deleteOp.Data)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		affect, err := exec.RowsAffected()
+		if err != nil {
+			panic(err.Error())
+		}
+
+		if affect > 0 {
+			c.String(http.StatusOK, "Success on Deleting Order of Payment")
+		} else {
+			c.String(http.StatusInternalServerError, "Failed on Deleting Order of Payment")
+		}
+	})
+
+	router.DELETE("/api/void-op-local", middleware.TokenChecker(), func(c *gin.Context) {
+		type DeleteOPLocal struct {
+			Data int `json:"data"`
+		}
+		var deleteOpLocal DeleteOPLocal
+		if err := c.ShouldBindJSON(&deleteOpLocal); err != nil {
+			c.String(http.StatusBadRequest, "Invalid request body")
+			return
+		}
+
+		c.Writer.Header().Set("X-XSS-Protection", "1; mode=block")
+		c.Writer.Header().Set("X-Content-Type-Options", "nosniff")
+		c.Writer.Header().Set("X-DNS-Prefetch-Control", "off")
+		c.Writer.Header().Set("X-Frame-Options", "DENY")
+		c.Writer.Header().Set("X-Download-Options", "noopen")
+		c.Writer.Header().Set("Referrer-Policy", "no-referrer")
+		c.Writer.Header().Set("Content-Security-Policy", "default-src 'self'; img-src 'self';")
+		c.Writer.Header().Set("X-Server", "OCBO Server")
+
+		var isPaid int
+		checkErr := db.QueryRow("SELECT COUNT(AFNum) FROM orderpaydetails WHERE OPRefId = ?", deleteOpLocal.Data).Scan(&isPaid)
+		if checkErr != nil {
+			c.AbortWithError(http.StatusInternalServerError, checkErr)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+
+		if isPaid == 1 {
+			c.String(http.StatusBadRequest, "Error! Payment already exist.")
+			return
+		}
+
+		dbpost, err := db.Prepare("DELETE FROM orderpaydetails WHERE OPRefId = ?")
+		if err != nil {
+			c.AbortWithError(http.StatusInternalServerError, err)
+			c.String(http.StatusInternalServerError, "Internal Server Error")
+			return
+		}
+		defer dbpost.Close()
+
+		exec, err := dbpost.Exec(deleteOpLocal.Data)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		affect, err := exec.RowsAffected()
+		if err != nil {
+			panic(err.Error())
+		}
+
+		if affect > 0 {
+			c.String(http.StatusOK, "Success on Deleting POPS Local")
+		} else {
+			c.String(http.StatusInternalServerError, "Failed on Deleting POPS Local")
+		}
+	})
+
 	router.Run(":4320")
 }