diff --git a/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.html b/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.html
index 07b523a443..2fac7b0fb1 100644
--- a/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.html
+++ b/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.html
@@ -12,21 +12,56 @@ <h4 class="mat-h4 flex-98">
 
     <mat-form-field class="flex-31">
       <mat-label>{{ 'labels.inputs.Minimum' | translate }}</mat-label>
-      <input type="number" matInput formControlName="minimumShares" />
+      <input type="number" matInput formControlName="minimumShares" min="1" step="1" required />
+      <mat-error *ngIf="shareProductSettingsForm.get('minimumShares').hasError('required')">
+        Minimum is <strong>required</strong>
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.get('minimumShares').hasError('min')">
+        {{ 'labels.inputs.Minimum Shares per Client' | translate }}
+        {{ 'labels.commons.must be greater than zero' | translate }}
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.get('minimumShares').hasError('pattern')">
+        {{ 'labels.inputs.Minimum Shares per Client' | translate }}
+        {{ 'labels.commons.must be an integer' | translate }}
+      </mat-error>
     </mat-form-field>
 
     <mat-form-field class="flex-31">
       <mat-label>{{ 'labels.inputs.Default' | translate }}</mat-label>
-      <input type="number" matInput formControlName="nominalShares" required />
-      <mat-error>
-        {{ 'labels.inputs.Default Shares per Client' | translate }} {{ 'labels.commons.is' | translate }}
-        <strong>{{ 'labels.commons.required' | translate }}</strong>
+      <input type="number" matInput formControlName="nominalShares" min="1" step="1" required />
+      <mat-error *ngIf="shareProductSettingsForm.get('nominalShares').hasError('required')">
+        Default is <strong>required</strong>
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.get('nominalShares').hasError('min')">
+        {{ 'labels.inputs.Default Shares per Client' | translate }}
+        {{ 'labels.commons.must be greater than zero' | translate }}
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.get('nominalShares').hasError('pattern')">
+        {{ 'labels.inputs.Default Shares per Client' | translate }}
+        {{ 'labels.commons.must be an integer' | translate }}
       </mat-error>
     </mat-form-field>
 
     <mat-form-field class="flex-31">
       <mat-label>{{ 'labels.inputs.Maximum' | translate }}</mat-label>
-      <input type="number" matInput formControlName="maximumShares" />
+      <input type="number" matInput formControlName="maximumShares" min="1" step="1" required />
+      <mat-error *ngIf="shareProductSettingsForm.get('maximumShares').hasError('required')">
+        Maximum is <strong>required</strong>
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.get('maximumShares').hasError('min')">
+        {{ 'labels.inputs.Maximum Shares per Client' | translate }}
+        {{ 'labels.commons.must be greater than zero' | translate }}
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.get('maximumShares').hasError('pattern')">
+        {{ 'labels.inputs.Maximum Shares per Client' | translate }}
+        {{ 'labels.commons.must be an integer' | translate }}
+      </mat-error>
+      <mat-error *ngIf="shareProductSettingsForm.hasError('sharesOrder')">
+        {{
+          'labels.commons.minimum must be less than or equal to default and default must be less than or equal to maximum'
+            | translate
+        }}
+      </mat-error>
     </mat-form-field>
 
     <h4 class="mat-h4 flex-98">
diff --git a/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.ts b/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.ts
index 930f8b36af..7867857150 100644
--- a/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.ts
+++ b/src/app/products/share-products/share-product-stepper/share-product-settings-step/share-product-settings-step.component.ts
@@ -53,19 +53,54 @@ export class ShareProductSettingsStepComponent implements OnInit {
   }
 
   createShareProductSettingsForm() {
-    this.shareProductSettingsForm = this.formBuilder.group({
-      minimumShares: [''],
-      nominalShares: [
-        '',
-        Validators.required
-      ],
-      maximumShares: [''],
-      minimumActivePeriodForDividends: [''],
-      minimumactiveperiodFrequencyType: [''],
-      lockinPeriodFrequency: [''],
-      lockinPeriodFrequencyType: [''],
-      allowDividendCalculationForInactiveClients: [false]
-    });
+    this.shareProductSettingsForm = this.formBuilder.group(
+      {
+        minimumShares: [
+          '',
+          [
+            Validators.required,
+            Validators.min(1),
+            Validators.pattern(/^[0-9]+$/)
+          ]
+        ],
+        nominalShares: [
+          '',
+          [
+            Validators.required,
+            Validators.min(1),
+            Validators.pattern(/^[0-9]+$/)
+          ]
+        ],
+        maximumShares: [
+          '',
+          [
+            Validators.required,
+            Validators.min(1),
+            Validators.pattern(/^[0-9]+$/)
+          ]
+        ],
+        minimumActivePeriodForDividends: [''],
+        minimumactiveperiodFrequencyType: [''],
+        lockinPeriodFrequency: [''],
+        lockinPeriodFrequencyType: [''],
+        allowDividendCalculationForInactiveClients: [false]
+      },
+      {
+        validators: this.validateSharesOrder
+      }
+    );
+  }
+
+  private validateSharesOrder(group: UntypedFormGroup): { [key: string]: any } | null {
+    const min = Number(group.get('minimumShares')?.value);
+    const nominal = Number(group.get('nominalShares')?.value);
+    const max = Number(group.get('maximumShares')?.value);
+    if (min && nominal && max) {
+      if (min > nominal || nominal > max) {
+        return { sharesOrder: true };
+      }
+    }
+    return null;
   }
 
   get shareProductSettings() {