fix: Update party outstanding amount

models/doctype/Party/PartyServer.js

@@ -18,4 +18,19 @@ module.exports = class PartyServer extends BaseDocument {
       this.gstin = '';
     }
   }
+
+  async updateOutstandingAmount() {
+    let isCustomer = this.customer;
+    let doctype = isCustomer ? 'SalesInvoice' : 'PurchaseInvoice';
+    let partyField = isCustomer ? 'customer' : 'supplier';
+    let { totalOutstanding } = await frappe.db.knex
+      .sum({ totalOutstanding: 'outstandingAmount' })
+      .from(doctype)
+      .where('submitted', 1)
+      .andWhere(partyField, this.name)
+      .first();
+
+    await this.set('outstandingAmount', this.round(totalOutstanding));
+    await this.update();
+  }
 };

models/doctype/Payment/PaymentServer.js

@@ -42,9 +42,12 @@ module.exports = class PaymentServer extends BaseDocument {
           `Payment amount (${this.amount}) should be greater than 0 and less than Outstanding amount (${outstandingAmount})`
         );
       } else {
+        // update outstanding amounts in invoice and party
         let newOutstanding = outstandingAmount - this.amount;
         await referenceDoc.set('outstandingAmount', newOutstanding);
         await referenceDoc.update();
+        let party = await frappe.getDoc('Party', this.party);
+        await party.updateOutstandingAmount();
       }
     }
   }

models/doctype/Transaction/TransactionServer.js

@@ -24,15 +24,21 @@ module.exports = {
     await entries.validateEntries();
   },
 
-  async beforeSubmit() {
+  async afterSubmit() {
+    // post ledger entries
     const entries = await this.getPosting();
     await entries.post();
+
+    // update outstanding amounts
     await frappe.db.setValue(
       this.doctype,
       this.name,
       'outstandingAmount',
       this.baseGrandTotal
     );
+
+    let party = await frappe.getDoc('Party', this.customer || this.supplier);
+    await party.updateOutstandingAmount();
   },
 
   async afterRevert() {