diff --git a/recipients_app/lib/data/models/payment/social_income_payment.dart b/recipients_app/lib/data/models/payment/social_income_payment.dart
index f55ef10de..e76d29bf9 100644
--- a/recipients_app/lib/data/models/payment/social_income_payment.dart
+++ b/recipients_app/lib/data/models/payment/social_income_payment.dart
@@ -21,9 +21,6 @@ class SocialIncomePayment extends Equatable {
   @JsonKey(name: "last_updated_by")
   final String? updatedBy;
 
-  @JsonKey(name: "last_updated_at")
-  final Timestamp? updatedAt;
-
   const SocialIncomePayment({
     required this.id,
     this.amount,
@@ -32,7 +29,6 @@ class SocialIncomePayment extends Equatable {
     this.status,
     this.comments,
     this.updatedBy,
-    this.updatedAt,
   });
 
   factory SocialIncomePayment.fromJson(Map<String, dynamic> json) =>
@@ -50,7 +46,6 @@ class SocialIncomePayment extends Equatable {
       status,
       comments,
       updatedBy,
-      updatedAt,
     ];
   }
 
@@ -62,7 +57,6 @@ class SocialIncomePayment extends Equatable {
     String? currency,
     PaymentStatus? status,
     String? updatedBy,
-    Timestamp? updatedAt,
   }) {
     return SocialIncomePayment(
       id: id ?? this.id,
@@ -72,7 +66,6 @@ class SocialIncomePayment extends Equatable {
       currency: currency ?? this.currency,
       status: status ?? this.status,
       updatedBy: updatedBy ?? this.updatedBy,
-      updatedAt: updatedAt ?? this.updatedAt,
     );
   }
 }
diff --git a/recipients_app/lib/data/models/payment/social_income_payment.g.dart b/recipients_app/lib/data/models/payment/social_income_payment.g.dart
index 9543a2465..92864bae7 100644
--- a/recipients_app/lib/data/models/payment/social_income_payment.g.dart
+++ b/recipients_app/lib/data/models/payment/social_income_payment.g.dart
@@ -16,8 +16,6 @@ SocialIncomePayment _$SocialIncomePaymentFromJson(Map<String, dynamic> json) =>
       status: $enumDecodeNullable(_$PaymentStatusEnumMap, json['status']),
       comments: json['comments'] as String?,
       updatedBy: json['last_updated_by'] as String?,
-      updatedAt: _$JsonConverterFromJson<Object, Timestamp>(
-          json['last_updated_at'], const TimestampConverter().fromJson),
     );
 
 Map<String, dynamic> _$SocialIncomePaymentToJson(
@@ -30,8 +28,6 @@ Map<String, dynamic> _$SocialIncomePaymentToJson(
       'status': _$PaymentStatusEnumMap[instance.status],
       'comments': instance.comments,
       'last_updated_by': instance.updatedBy,
-      'last_updated_at': _$JsonConverterToJson<Object, Timestamp>(
-          instance.updatedAt, const TimestampConverter().toJson),
     };
 
 Value? _$JsonConverterFromJson<Json, Value>(
diff --git a/recipients_app/lib/data/repositories/payment_repository.dart b/recipients_app/lib/data/repositories/payment_repository.dart
index cb9df8509..b080fafba 100644
--- a/recipients_app/lib/data/repositories/payment_repository.dart
+++ b/recipients_app/lib/data/repositories/payment_repository.dart
@@ -3,7 +3,6 @@ import "package:app/data/repositories/repositories.dart";
 import "package:cloud_firestore/cloud_firestore.dart";
 
 const String paymentCollection = "payments";
-const String kUpdatedByAppUser = "app user";
 
 class PaymentRepository {
   final FirebaseFirestore firestore;
@@ -46,7 +45,6 @@ class PaymentRepository {
     final updatedPayment = payment.copyWith(
       status: PaymentStatus.confirmed,
       updatedBy: "${recipient.userId}",
-      updatedAt: Timestamp.now(),
     );
 
     await firestore
@@ -66,7 +64,6 @@ class PaymentRepository {
       status: PaymentStatus.contested,
       comments: contestReason,
       updatedBy: "${recipient.userId}",
-      updatedAt: Timestamp.now(),
     );
 
     await firestore
diff --git a/recipients_app/lib/data/repositories/user_repository.dart b/recipients_app/lib/data/repositories/user_repository.dart
index 7fe6bfb6f..6b81c7bea 100644
--- a/recipients_app/lib/data/repositories/user_repository.dart
+++ b/recipients_app/lib/data/repositories/user_repository.dart
@@ -85,7 +85,7 @@ class UserRepository {
       firebaseAuth.signInWithCredential(credentials);
 
   Future<void> updateRecipient(Recipient recipient) async {
-    final updatedRecipient = recipient.copyWith(updatedBy: kUpdatedByAppUser);
+    final updatedRecipient = recipient.copyWith(updatedBy: "${recipient.userId}");
 
     return firestore
         .collection(recipientCollection)