diff --git a/models/baseModels/Invoice/Invoice.ts b/models/baseModels/Invoice/Invoice.ts
index 37ce836c..6141cc03 100644
--- a/models/baseModels/Invoice/Invoice.ts
+++ b/models/baseModels/Invoice/Invoice.ts
@@ -1121,18 +1121,14 @@ export abstract class Invoice extends Transactional {
       return;
     }
 
-    if (!this.pricingRuleDetail?.length || !this.pricingRuleDetail.length) {
-      return;
-    }
-
     this.items = this.items.filter((item) => !item.isFreeItem);
 
     for (const item of this.items) {
-      const pricingRuleDetailForItem = this.pricingRuleDetail.filter(
+      const pricingRuleDetailForItem = this.pricingRuleDetail?.filter(
         (doc) => doc.referenceItem === item.item
       );
 
-      if (!pricingRuleDetailForItem.length) {
+      if (!pricingRuleDetailForItem?.length) {
         continue;
       }
 
diff --git a/src/components/POS/SelectedItemRow.vue b/src/components/POS/SelectedItemRow.vue
index 5545c528..d15a2ace 100644
--- a/src/components/POS/SelectedItemRow.vue
+++ b/src/components/POS/SelectedItemRow.vue
@@ -358,38 +358,34 @@ export default defineComponent({
       this.row.setRate = rate;
       this.$emit('runSinvFormulas');
     },
-    setQuantity(quantity: number) {
-      this.row.setQuantity = quantity;
-      this.$emit('runSinvFormulas');
+    async setQuantity(quantity: number) {
+      this.row.set('quantity', quantity);
+
+      if (!this.row.isFreeItem) {
+        await this.updatePricingRuleItem();
+        this.$emit('runSinvFormulas');
+      }
     },
-    setTransferUnit(unit: string) {
-      this.row.setTransferUnit = unit;
-      this.row._applyFormula('transferUnit');
-    },
-    setTransferQty(quantity: number) {
-      this.row.transferQuantity = quantity;
-      this.row._applyFormula('transferQuantity');
-      this.$emit('runSinvFormulas');
-    },
-    removeAddedItem(row: SalesInvoiceItem) {
+    async removeAddedItem(row: SalesInvoiceItem) {
       this.row.parentdoc?.remove('items', row?.idx as number);
 
       if (!row.isFreeItem) {
-        this.updatePricingRuleItem();
+        await this.updatePricingRuleItem();
       }
     },
     async updatePricingRuleItem() {
-      const pricingRule = await this.row.parentdoc?.getPricingRule() as ApplicablePricingRules[];
+      const pricingRule =
+        (await this.row.parentdoc?.getPricingRule()) as ApplicablePricingRules[];
 
-      setTimeout(() => {
+      setTimeout(async () => {
         const appliedPricingRuleCount = this.row.parentdoc?.items?.filter(
           (val) => val.isFreeItem
         ).length;
 
         if (appliedPricingRuleCount !== pricingRule?.length) {
-           this.row.parentdoc?.appendPricingRuleDetail(pricingRule);
+          await this.row.parentdoc?.appendPricingRuleDetail(pricingRule);
 
-          this.row.parentdoc?.applyProductDiscount();
+          await this.row.parentdoc?.applyProductDiscount();
         }
       }, 1);
     },