diff --git a/process/payments/reactions.ts b/process/payments/reactions.ts
index c63826f..e5dca45 100644
--- a/process/payments/reactions.ts
+++ b/process/payments/reactions.ts
@@ -8,7 +8,7 @@ import { shift } from 'radash';
 import type { CalculationOptions } from 'stores/calculation/options/types';
 import type RootStore from 'stores/root';
 import type { Row } from 'stores/tables/payments/types';
-import type { RemoveError } from 'stores/validation/types';
+import ValidationHelper from 'stores/validation/helper';
 import { difference } from 'tools/array';
 import { makeDisposable } from 'tools/mobx';
 import * as seasonsConstants from './lib/seasons-constants';
@@ -558,7 +558,7 @@ export default function paymentsReactions(
   /**
    * Валидация
    */
-  let removeError: RemoveError | undefined;
+  const validationHelper = new ValidationHelper();
 
   reaction(
     () => {
@@ -577,11 +577,12 @@ export default function paymentsReactions(
       };
     },
     () => {
-      if (removeError) removeError();
+      validationHelper.removeErrors();
       const errorText = validatePaymentsTable(store);
 
       if (errorText) {
-        removeError = $tables.payments.validation.addError(errorText);
+        const removeError = $tables.payments.validation.addError(errorText);
+        validationHelper.add(removeError);
       }
     },
     {
diff --git a/process/supplier-agent/lib/create-reactions.ts b/process/supplier-agent/lib/create-reactions.ts
index d7326ff..2a51c0d 100644
--- a/process/supplier-agent/lib/create-reactions.ts
+++ b/process/supplier-agent/lib/create-reactions.ts
@@ -8,7 +8,7 @@ import utc from 'dayjs/plugin/utc';
 import type * as CRMTypes from 'graphql/crm.types';
 import { reaction } from 'mobx';
 import type RootStore from 'stores/root';
-import type { RemoveError } from 'stores/validation/types';
+import ValidationHelper from 'stores/validation/helper';
 import { normalizeOptions } from 'tools/entity';
 import { makeDisposable } from 'tools/mobx';
 
@@ -149,15 +149,14 @@ export function validateAgentRewardSumm(
 
   const rewardSummTitle = titles[rewardSummField];
 
-  const errors: Array<RemoveError> = [];
+  const validationHelper = new ValidationHelper();
 
   reaction(
     () => $calculation.element(rewardSummField).getValue() as number,
     async (rewardSumm) => {
       const conditionId = $calculation.element(rewardConditionField).getValue();
       if (!conditionId) {
-        errors.forEach((removeError) => removeError());
-        errors.length = 0;
+        validationHelper.removeErrors();
 
         return;
       }
@@ -183,7 +182,7 @@ export function validateAgentRewardSumm(
           message: `${rewardSummTitle} указан больше условия по агентскому договору!`,
         })
         .err((removeError) => {
-          errors.push(removeError);
+          validationHelper.add(removeError);
         });
 
       $calculation
@@ -196,7 +195,7 @@ export function validateAgentRewardSumm(
           message: `${rewardSummTitle} указан меньше условия по агентскому договору!`,
         })
         .err((removeError) => {
-          errors.push(removeError);
+          validationHelper.add(removeError);
         });
 
       $calculation
@@ -208,7 +207,7 @@ export function validateAgentRewardSumm(
           message: `${rewardSummTitle} указан меньше условия по агентскому договору!`,
         })
         .err((removeError) => {
-          errors.push(removeError);
+          validationHelper.add(removeError);
         });
     }
   );
diff --git a/stores/validation/helper.ts b/stores/validation/helper.ts
new file mode 100644
index 0000000..c31f5d5
--- /dev/null
+++ b/stores/validation/helper.ts
@@ -0,0 +1,20 @@
+import type { ObservableSet } from 'mobx';
+import { observable } from 'mobx';
+import type { RemoveError } from './types';
+
+export default class ValidationHelper {
+  errors: ObservableSet<RemoveError>;
+
+  constructor() {
+    this.errors = observable.set();
+  }
+
+  add = (removeError: RemoveError) => {
+    this.errors.add(removeError);
+  };
+
+  removeErrors = () => {
+    this.errors.forEach((removeError) => removeError());
+    this.errors.clear();
+  };
+}