diff --git a/.changeset/short-seals-poke.md b/.changeset/short-seals-poke.md
new file mode 100644
index 0000000000..08b76c6593
--- /dev/null
+++ b/.changeset/short-seals-poke.md
@@ -0,0 +1,5 @@
+---
+'@baloise/ds-core': patch
+---
+
+**field**: fix id generation to prevent duplicate ids in a form
diff --git a/.changeset/thick-lies-search.md b/.changeset/thick-lies-search.md
new file mode 100644
index 0000000000..6a36d90098
--- /dev/null
+++ b/.changeset/thick-lies-search.md
@@ -0,0 +1,5 @@
+---
+'@baloise/ds-core': patch
+---
+
+**core**: Fix id assignment of bal-field children
diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-basic-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-basic-desktop.png
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index 3b378289b1..b37deae9e4 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-disabled-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-disabled-desktop.png
index 621b498e76..6ca1e8c29e 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-field-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-field-desktop.png
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index 612403514b..e286248412 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-basic-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-basic-desktop.png
index d04e17859e..27715720eb 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-basic-open-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-basic-open-desktop.png
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index aaf3988670..79df702d02 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-disabled-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-disabled-desktop.png
index e55cf600a1..d7af061977 100644
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index 7d379ad8c3..34d2674da2 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-field-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-field-desktop.png
index ada0d1f92a..5f03470b1d 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-field-mobile.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-field-mobile.png
index e8b4fee87e..3c3910d1b5 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-invalid-desktop.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-invalid-desktop.png
index 6827a5efd2..e02c967cdc 100644
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diff --git a/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-invalid-mobile.png b/e2e/cypress/snapshots/base/visual/bal-select.visual.cy.ts/select-multiple-invalid-mobile.png
index d39c2fcd82..be63b6d83b 100644
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diff --git a/packages/core/src/components/bal-field/bal-field.tsx b/packages/core/src/components/bal-field/bal-field.tsx
index 5c405759a9..08fc751c69 100644
--- a/packages/core/src/components/bal-field/bal-field.tsx
+++ b/packages/core/src/components/bal-field/bal-field.tsx
@@ -184,7 +184,7 @@ export class Field implements ComponentInterface, BalMutationObserver {
       'bal-field-control bal-file-upload',
     ])
 
-    const ariaForm = defaultBalAriaForm
+    const ariaForm = { ...defaultBalAriaForm }
 
     if (label) {
       ariaForm.labelId = `${this.fieldId}-lbl`
diff --git a/packages/core/src/components/bal-select/test/bal-select-multiple.visual.html b/packages/core/src/components/bal-select/test/bal-select-multiple.visual.html
index 2fe4c9ee83..6e26706f16 100644
--- a/packages/core/src/components/bal-select/test/bal-select-multiple.visual.html
+++ b/packages/core/src/components/bal-select/test/bal-select-multiple.visual.html
@@ -17,27 +17,45 @@
     <bal-doc-app>
       <main class="container py-medium">
         <section data-testid="basic">
-          <bal-select multiple data-testid="basic-input" placeholder="Placeholder">
-            <bal-select-option label="Option 1" value="opt-1">Option 1</bal-select-option>
-            <bal-select-option label="Option 2" value="opt-2">Option 2</bal-select-option>
-            <bal-select-option label="Option 3" value="opt-3">Option 3</bal-select-option>
-            <bal-select-option label="Option 4" value="opt-4">Option 4</bal-select-option>
-            <bal-select-option label="Option 5" value="opt-5">Option 5</bal-select-option>
-            <bal-select-option label="Option 6" value="opt-6">Option 6</bal-select-option>
-            <bal-select-option label="Option 7" value="opt-7">Option 7</bal-select-option>
-          </bal-select>
+          <bal-field>
+            <bal-field-label>Label</bal-field-label>
+            <bal-field-control>
+              <bal-select multiple data-testid="basic-input" placeholder="Placeholder">
+                <bal-select-option label="Option 1" value="opt-1">Option 1</bal-select-option>
+                <bal-select-option label="Option 2" value="opt-2">Option 2</bal-select-option>
+                <bal-select-option label="Option 3" value="opt-3">Option 3</bal-select-option>
+                <bal-select-option label="Option 4" value="opt-4">Option 4</bal-select-option>
+                <bal-select-option label="Option 5" value="opt-5">Option 5</bal-select-option>
+                <bal-select-option label="Option 6" value="opt-6">Option 6</bal-select-option>
+                <bal-select-option label="Option 7" value="opt-7">Option 7</bal-select-option>
+              </bal-select>
+            </bal-field-control>
+            <bal-field-message>Message</bal-field-message>
+          </bal-field>
         </section>
         <section data-testid="disabled">
-          <bal-select multiple disabled value="opt-1,opt-2">
-            <bal-select-option label="Option 1" value="opt-1">Option 1</bal-select-option>
-            <bal-select-option label="Option 2" value="opt-2">Option 2</bal-select-option>
-          </bal-select>
+          <bal-field>
+            <bal-field-label>Label</bal-field-label>
+            <bal-field-control>
+              <bal-select multiple disabled value="opt-1,opt-2">
+                <bal-select-option label="Option 1" value="opt-1">Option 1</bal-select-option>
+                <bal-select-option label="Option 2" value="opt-2">Option 2</bal-select-option>
+              </bal-select>
+            </bal-field-control>
+            <bal-field-message>Message</bal-field-message>
+          </bal-field>
         </section>
         <section data-testid="invalid">
-          <bal-select multiple invalid value="opt-1,opt-2">
-            <bal-select-option label="Option 1" value="opt-1">Option 1</bal-select-option>
-            <bal-select-option label="Option 2" value="opt-2">Option 2</bal-select-option>
-          </bal-select>
+          <bal-field>
+            <bal-field-label>Label</bal-field-label>
+            <bal-field-control>
+              <bal-select multiple invalid value="opt-1,opt-2">
+                <bal-select-option label="Option 1" value="opt-1">Option 1</bal-select-option>
+                <bal-select-option label="Option 2" value="opt-2">Option 2</bal-select-option>
+              </bal-select>
+            </bal-field-control>
+            <bal-field-message>Message</bal-field-message>
+          </bal-field>
         </section>
         <section data-testid="field">
           <bal-field>
diff --git a/packages/core/src/utils/form.ts b/packages/core/src/utils/form.ts
index c66a9b287a..81dc1b1832 100644
--- a/packages/core/src/utils/form.ts
+++ b/packages/core/src/utils/form.ts
@@ -31,8 +31,8 @@ export interface BalAriaFormLinking {
   setAriaForm(ariaForm: BalAriaForm): Promise<void>
 }
 
-export const defaultBalAriaForm: BalAriaForm = {
+export const defaultBalAriaForm: BalAriaForm = Object.freeze({
   controlId: undefined,
   labelId: undefined,
   messageId: undefined,
-}
+})