diff --git a/src/util/errors.js b/src/util/errors.js
index 44f23633..a17ce45a 100644
--- a/src/util/errors.js
+++ b/src/util/errors.js
@@ -11,6 +11,9 @@
 
 import {
   ERROR_CODE_TRANSACTION_LISTING_NOT_FOUND,
+  ERROR_CODE_TRANSACTION_INVALID_TRANSITION,
+  ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_CUSTOMER,
+  ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_PROVIDER,
   ERROR_CODE_PAYMENT_FAILED,
   ERROR_CODE_EMAIL_TAKEN,
   ERROR_CODE_EMAIL_NOT_FOUND,
@@ -123,6 +126,25 @@ export const isTransactionInitiateAmountTooLowError = error => {
   });
 };
 
+/**
+ * Check if the given API error (from `sdk.transactions.transition(id, transition, params)`)
+ * is due to invalid transition attempt.
+ */
+export const isTransactionsTransitionInvalidTransition = error =>
+  error &&
+  error.status === 409 &&
+  hasErrorWithCode(error, ERROR_CODE_TRANSACTION_INVALID_TRANSITION);
+
+/**
+ * Check if the given API error (from `sdk.transactions.transition(id, transition, params)`)
+ * is due to already sent review.
+ */
+export const isTransactionsTransitionAlreadyReviewed = error =>
+  error &&
+  error.status === 409 &&
+  (hasErrorWithCode(error, ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_CUSTOMER) ||
+    hasErrorWithCode(error, ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_PROVIDER));
+
 /**
  * Check if the given API error (from `sdk.currentUser.changeEmail(params)`)
  * is due to giving wrong password.
diff --git a/src/util/propTypes.js b/src/util/propTypes.js
index 12e3cb4c..1eb451af 100644
--- a/src/util/propTypes.js
+++ b/src/util/propTypes.js
@@ -312,6 +312,11 @@ export const pagination = shape({
 });
 
 export const ERROR_CODE_TRANSACTION_LISTING_NOT_FOUND = 'transaction-listing-not-found';
+export const ERROR_CODE_TRANSACTION_INVALID_TRANSITION = 'transaction-invalid-transition';
+export const ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_CUSTOMER =
+  'transaction-already-reviewed-by-customer';
+export const ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_PROVIDER =
+  'transaction-already-reviewed-by-provider';
 export const ERROR_CODE_PAYMENT_FAILED = 'transaction-payment-failed';
 export const ERROR_CODE_EMAIL_TAKEN = 'email-taken';
 export const ERROR_CODE_EMAIL_NOT_FOUND = 'email-not-found';
@@ -320,6 +325,9 @@ export const ERROR_CODE_TOO_MANY_VERIFICATION_REQUESTS = 'email-too-many-verific
 export const ERROR_CODE_UPLOAD_OVER_LIMIT = 'request-upload-over-limit';
 const ERROR_CODES = [
   ERROR_CODE_TRANSACTION_LISTING_NOT_FOUND,
+  ERROR_CODE_TRANSACTION_INVALID_TRANSITION,
+  ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_CUSTOMER,
+  ERROR_CODE_TRANSACTION_ALREADY_REVIEWED_BY_PROVIDER,
   ERROR_CODE_PAYMENT_FAILED,
   ERROR_CODE_EMAIL_TAKEN,
   ERROR_CODE_EMAIL_NOT_FOUND,