diff --git a/packages/codegen-ui-react/lib/__tests__/forms/validation.test.ts b/packages/codegen-ui-react/lib/__tests__/forms/validation.test.ts
index 2f5b20fb9..0c3308de8 100644
--- a/packages/codegen-ui-react/lib/__tests__/forms/validation.test.ts
+++ b/packages/codegen-ui-react/lib/__tests__/forms/validation.test.ts
@@ -84,14 +84,14 @@ describe('validateField tests', () => {
   });
   it('should validate LESS_THAN_CHAR_LENGTH type', () => {
     expect(
-      validateField('123', [{ type: ValidationTypes.LESS_THAN_CHAR_LENGTH, numValues: [4], validationMessage: '' }]),
+      validateField('123', [{ type: ValidationTypes.LESS_THAN_CHAR_LENGTH, numValues: [3], validationMessage: '' }]),
     ).toEqual({ hasError: false });
     expect(
       validateField('', [{ type: ValidationTypes.LESS_THAN_CHAR_LENGTH, numValues: [3], validationMessage: '' }]),
     ).toEqual({ hasError: false });
     expect(
       validateField('23445', [{ type: ValidationTypes.LESS_THAN_CHAR_LENGTH, numValues: [3], validationMessage: '' }]),
-    ).toEqual({ hasError: true, errorMessage: 'The value must be shorter than 3' });
+    ).toEqual({ hasError: true, errorMessage: 'The value must be 3 characters or fewer' });
   });
   it('should validate GREATER_THAN_CHAR_LENGTH type', () => {
     expect(
diff --git a/packages/codegen-ui-react/lib/utils/forms/validation.ts b/packages/codegen-ui-react/lib/utils/forms/validation.ts
index a2d0d31f2..4c704841d 100644
--- a/packages/codegen-ui-react/lib/utils/forms/validation.ts
+++ b/packages/codegen-ui-react/lib/utils/forms/validation.ts
@@ -38,13 +38,15 @@ const checkValidation = (value: any, validation: FieldValidationConfiguration) =
     switch (validation.type) {
       case 'LessThanChar':
         return {
-          hasError: !(value.length < validation.numValues[0]),
-          errorMessage: validation.validationMessage || `The value must be shorter than ${validation.numValues[0]}`,
+          hasError: !(value.length <= validation.numValues[0]),
+          errorMessage:
+            validation.validationMessage || `The value must be ${validation.numValues[0]} characters or fewer`,
         };
       case 'GreaterThanChar':
         return {
           hasError: !(value.length > validation.numValues[0]),
-          errorMessage: validation.validationMessage || `The value must be longer than ${validation.numValues[0]}`,
+          errorMessage:
+            validation.validationMessage || `The value must be at least ${validation.numValues[0]} characters`,
         };
       case 'LessThanNum':
         return {
@@ -459,7 +461,7 @@ export const generateValidationFunction = () => {
                                               factory.createIdentifier('value'),
                                               factory.createIdentifier('length'),
                                             ),
-                                            factory.createToken(ts.SyntaxKind.LessThanToken),
+                                            factory.createToken(ts.SyntaxKind.LessThanEqualsToken),
                                             factory.createElementAccessExpression(
                                               factory.createPropertyAccessExpression(
                                                 factory.createIdentifier('validation'),