diff --git a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_creation/components/advanced_step/advanced_step_form.tsx b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_creation/components/advanced_step/advanced_step_form.tsx
index 7409e414af2b6..1aad5dfd9cfb9 100644
--- a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_creation/components/advanced_step/advanced_step_form.tsx
+++ b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_creation/components/advanced_step/advanced_step_form.tsx
@@ -78,7 +78,10 @@ export const AdvancedStepForm: FC<CreateAnalyticsStepProps> = ({
   const isRegOrClassJob =
     jobType === ANALYSIS_CONFIG_TYPE.REGRESSION || jobType === ANALYSIS_CONFIG_TYPE.CLASSIFICATION;
 
-  const mmlInvalid = modelMemoryLimitValidationResult !== null;
+  const mmlInvalid =
+    modelMemoryLimitValidationResult !== null &&
+    (modelMemoryLimitValidationResult.invalidUnits !== undefined ||
+      modelMemoryLimitValidationResult.required === true);
 
   const isStepInvalid =
     mmlInvalid ||
@@ -340,7 +343,7 @@ export const AdvancedStepForm: FC<CreateAnalyticsStepProps> = ({
             label={i18n.translate('xpack.ml.dataframe.analytics.create.modelMemoryLimitLabel', {
               defaultMessage: 'Model memory limit',
             })}
-            isInvalid={mmlInvalid}
+            isInvalid={modelMemoryLimitValidationResult !== null}
             error={mmlErrors}
             helpText={i18n.translate(
               'xpack.ml.dataframe.analytics.create.modelMemoryLimitHelpText',
@@ -359,7 +362,7 @@ export const AdvancedStepForm: FC<CreateAnalyticsStepProps> = ({
               disabled={isJobCreated}
               value={modelMemoryLimit || ''}
               onChange={(e) => setFormState({ modelMemoryLimit: e.target.value })}
-              isInvalid={mmlInvalid}
+              isInvalid={modelMemoryLimitValidationResult !== null}
               data-test-subj="mlAnalyticsCreateJobWizardModelMemoryInput"
             />
           </EuiFormRow>
diff --git a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/hooks/use_create_analytics_form/reducer.ts b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/hooks/use_create_analytics_form/reducer.ts
index 59c6f7249408d..6fb3904e76ecb 100644
--- a/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/hooks/use_create_analytics_form/reducer.ts
+++ b/x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/hooks/use_create_analytics_form/reducer.ts
@@ -72,7 +72,7 @@ export function getModelMemoryLimitErrors(mmlValidationResult: any): string[] |
     if (errorKey === 'min') {
       acc.push(
         i18n.translate('xpack.ml.dataframe.analytics.create.modelMemoryUnitsMinError', {
-          defaultMessage: 'Model memory limit cannot be lower than {mml}',
+          defaultMessage: 'Model memory limit is lower than estimated value {mml}',
           values: {
             mml: mmlValidationResult.min.minValue,
           },
@@ -425,12 +425,15 @@ const validateForm = (state: State): State => {
     dependentVariable === '';
 
   const mmlValidationResult = validateMml(estimatedModelMemoryLimit, modelMemoryLimit);
+  const mmlInvalid =
+    mmlValidationResult !== null &&
+    (mmlValidationResult.invalidUnits !== undefined || mmlValidationResult.required === true);
 
   state.form.modelMemoryLimitValidationResult = mmlValidationResult;
 
   state.isValid =
     !jobTypeEmpty &&
-    !mmlValidationResult &&
+    !mmlInvalid &&
     !jobIdEmpty &&
     jobIdValid &&
     !jobIdExists &&