diff --git a/fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/serialization/LoanEventApiJsonValidator.java b/fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/serialization/LoanEventApiJsonValidator.java
index 4050539..b95a5d5 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/serialization/LoanEventApiJsonValidator.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/portfolio/loanaccount/serialization/LoanEventApiJsonValidator.java
@@ -233,7 +233,7 @@
         baseDataValidator.reset().parameter(LoanApiConstants.REVERSAL_EXTERNAL_ID_PARAMNAME).ignoreIfNull().value(reversalExternalId)
                 .notExceedingLengthOf(100);
 
-        validatePaymentDetails(baseDataValidator, element, false);
+        validatePaymentDetails(baseDataValidator, element);
         throwExceptionIfValidationWarningsExist(dataValidationErrors);
     }
 
@@ -263,7 +263,7 @@
         final String note = this.fromApiJsonHelper.extractStringNamed(LoanApiConstants.noteParameterName, element);
         baseDataValidator.reset().parameter(LoanApiConstants.noteParameterName).value(note).notExceedingLengthOf(1000);
 
-        validatePaymentDetails(baseDataValidator, element, true);
+        validatePaymentDetails(baseDataValidator, element);
         throwExceptionIfValidationWarningsExist(dataValidationErrors);
     }
 
@@ -313,19 +313,11 @@
     }
 
     private void validatePaymentDetails(final DataValidatorBuilder baseDataValidator, final JsonElement element) {
-        final boolean paymentDetailRequired = false; // Default value for backward compatibility
-        validatePaymentDetails(baseDataValidator, element, paymentDetailRequired);
-    }
-
-    private void validatePaymentDetails(final DataValidatorBuilder baseDataValidator, final JsonElement element,
-            final boolean paymentDetailRequired) {
         // Validate all string payment detail fields for max length
         final Integer paymentTypeId = this.fromApiJsonHelper.extractIntegerWithLocaleNamed("paymentTypeId", element);
-        if (paymentDetailRequired) {
-            baseDataValidator.reset().parameter("paymentTypeId").value(paymentTypeId).notNull().integerGreaterThanZero();
-        } else {
-            baseDataValidator.reset().parameter("paymentTypeId").value(paymentTypeId).ignoreIfNull().integerGreaterThanZero();
-        }
+
+        baseDataValidator.reset().parameter("paymentTypeId").value(paymentTypeId).ignoreIfNull().integerGreaterThanZero();
+
         final Set<String> paymentDetailParameters = new HashSet<>(
                 Arrays.asList("accountNumber", "checkNumber", "routingCode", "receiptNumber", "bankNumber"));
         for (final String paymentDetailParameterName : paymentDetailParameters) {
diff --git a/integration-tests/src/test/java/org/apache/fineract/integrationtests/LoanChargebackOnPaymentTypeRepaymentTransactionsTest.java b/integration-tests/src/test/java/org/apache/fineract/integrationtests/LoanChargebackOnPaymentTypeRepaymentTransactionsTest.java
index 2f6e812..0abb77a 100644
--- a/integration-tests/src/test/java/org/apache/fineract/integrationtests/LoanChargebackOnPaymentTypeRepaymentTransactionsTest.java
+++ b/integration-tests/src/test/java/org/apache/fineract/integrationtests/LoanChargebackOnPaymentTypeRepaymentTransactionsTest.java
@@ -201,7 +201,7 @@
         // chargeback on Merchant Issued Refund Transaction
         chargebackTransactionResponse = loanTransactionHelper.chargebackLoanTransaction(loanExternalIdStr,
                 merchantIssuedRefund_1.getResourceId(),
-                new PostLoansLoanIdTransactionsTransactionIdRequest().locale("en").transactionAmount(100.0).paymentTypeId(1L));
+                new PostLoansLoanIdTransactionsTransactionIdRequest().locale("en").transactionAmount(100.0));
 
         // verify transaction relation and outstanding balance
         assertNotNull(chargebackTransactionResponse);