diff --git a/prisma/migrations/20241029024727_add_issued_invoice_status_in_installments/migration.sql b/prisma/migrations/20241029024727_add_issued_invoice_status_in_installments/migration.sql
new file mode 100644
index 0000000..0d0ba87
--- /dev/null
+++ b/prisma/migrations/20241029024727_add_issued_invoice_status_in_installments/migration.sql
@@ -0,0 +1,9 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `date` on the `QuotationPaySplit` table. All the data in the column will be lost.
+
+*/
+-- AlterTable
+ALTER TABLE "QuotationPaySplit" DROP COLUMN "date",
+ADD COLUMN     "invoice" BOOLEAN NOT NULL DEFAULT false;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index dd961ec..b319715 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -1166,9 +1166,9 @@ model Quotation {
 model QuotationPaySplit {
   id String @id @default(cuid())
 
-  no     Int
-  date   DateTime @db.Date
-  amount Float
+  no      Int
+  amount  Float
+  invoice Boolean @default(false)
 
   quotation   Quotation? @relation(fields: [quotationId], references: [id], onDelete: Cascade)
   quotationId String?
diff --git a/src/controllers/04-invoice-controller.ts b/src/controllers/04-invoice-controller.ts
index 588cd4c..0dc21bb 100644
--- a/src/controllers/04-invoice-controller.ts
+++ b/src/controllers/04-invoice-controller.ts
@@ -137,7 +137,17 @@ export class InvoiceController extends Controller {
     return await prisma.$transaction(async (tx) => {
       await tx.quotation.update({
         where: { id: body.quotationId },
-        data: { quotationStatus: "PaymentInProcess" },
+        data: {
+          quotationStatus: "PaymentInProcess",
+          paySplit: body.installmentNo
+            ? {
+                updateMany: {
+                  where: { no: { in: body.installmentNo } },
+                  data: { invoice: true },
+                },
+              }
+            : undefined,
+        },
       });
       return await tx.invoice.create({
         data: {
diff --git a/src/controllers/05-quotation-controller.ts b/src/controllers/05-quotation-controller.ts
index 6343f50..de7dd3f 100644
--- a/src/controllers/05-quotation-controller.ts
+++ b/src/controllers/05-quotation-controller.ts
@@ -98,7 +98,7 @@ type QuotationUpdate = {
   payCondition?: PayCondition;
 
   paySplitCount?: number;
-  paySplit?: { date: Date; amount: number }[];
+  paySplit?: { amount: number }[];
 
   payBillDate?: Date;