diff --git a/ontrack-web-core/components/links/BuildNode.js b/ontrack-web-core/components/links/BuildNode.js
index 0a7654dbba..de0a0f3c08 100644
--- a/ontrack-web-core/components/links/BuildNode.js
+++ b/ontrack-web-core/components/links/BuildNode.js
@@ -14,6 +14,7 @@ export default function BuildNode({data}) {
         <>
             <Handle type="target" position={Position.Left}/>
             <Card
+                data-testid={`ot-build-link-node-${build.id}`}
                 title={undefined}
                 size="small"
                 style={
diff --git a/ontrack-web-core/components/links/DependencyLinksModeButton.js b/ontrack-web-core/components/links/DependencyLinksModeButton.js
index 40ac2fed94..68e7ab4d4c 100644
--- a/ontrack-web-core/components/links/DependencyLinksModeButton.js
+++ b/ontrack-web-core/components/links/DependencyLinksModeButton.js
@@ -7,6 +7,8 @@ export default function DependencyLinksModeButton({icon, selectedMode, mode, act
             {
                 selectedMode && selectedMode !== mode &&
                 <FloatButton
+                    className="ot-build-links-mode-button"
+                    data-testid={`build-links-mode-${mode}`}
                     icon={icon}
                     onClick={() => action(mode)}
                     tooltip={title}
diff --git a/ontrack-web-core/components/promotionRuns/PromotionRun.js b/ontrack-web-core/components/promotionRuns/PromotionRun.js
index 5cfad53977..66f4f5e056 100644
--- a/ontrack-web-core/components/promotionRuns/PromotionRun.js
+++ b/ontrack-web-core/components/promotionRuns/PromotionRun.js
@@ -9,17 +9,20 @@ export default function PromotionRun({
                                      }) {
     return (
         <>
-            <PromotionLevel
-                promotionLevel={promotionRun.promotionLevel}
-                size={size}
-                displayTooltip={displayDetails}
-                displayText={displayPromotionLevelName}
-                displayDescription={displayPromotionLevelDescription}
-                details={
-                    displayDetails ?
-                        <Timestamp prefix="Promoted on " value={promotionRun.creation.time}/> : undefined
-                }
-            />
+            {
+                promotionRun &&
+                <PromotionLevel
+                    promotionLevel={promotionRun.promotionLevel}
+                    size={size}
+                    displayTooltip={displayDetails}
+                    displayText={displayPromotionLevelName}
+                    displayDescription={displayPromotionLevelDescription}
+                    details={
+                        displayDetails ?
+                            <Timestamp prefix="Promoted on " value={promotionRun.creation.time}/> : undefined
+                    }
+                />
+            }
         </>
     )
 }
\ No newline at end of file
diff --git a/ontrack-web-tests/tests/core/builds/build.js b/ontrack-web-tests/tests/core/builds/build.js
index f0aa5bbc97..145dee020d 100644
--- a/ontrack-web-tests/tests/core/builds/build.js
+++ b/ontrack-web-tests/tests/core/builds/build.js
@@ -1,3 +1,5 @@
+import {BuildLinksPage} from "./buildLinks";
+
 const {ui} = require("@ontrack/connection");
 const {expect} = require("@playwright/test");
 
@@ -18,4 +20,9 @@ export class BuildPage {
         await expect(this.page.getByText("Upstream links")).toBeVisible()
     }
 
+    async goToLinks() {
+        await this.page.getByRole("button", {name: "Links"}).click()
+        return new BuildLinksPage(this.page)
+    }
+
 }
\ No newline at end of file
diff --git a/ontrack-web-tests/tests/core/builds/build.spec.js b/ontrack-web-tests/tests/core/builds/build.spec.js
index 739ffc867e..07c3a7ca9c 100644
--- a/ontrack-web-tests/tests/core/builds/build.spec.js
+++ b/ontrack-web-tests/tests/core/builds/build.spec.js
@@ -47,4 +47,44 @@ test('build page with validations without a type', async ({page}) => {
     // Navigating to the build
     const buildPage = new BuildPage(page, build)
     await buildPage.goTo()
+})
+
+test('graph of links between builds', async ({page}) => {
+    // Provisioning
+    const project = await ontrack().createProject()
+    const branch = await project.createBranch()
+    const build = await branch.createBuild()
+
+    // Link
+    const targetProject = await ontrack().createProject()
+    const targetBranch = await targetProject.createBranch()
+    const target = await targetBranch.createBuild()
+    await build.linkTo(target)
+
+    // Login
+    await login(page)
+
+    // Navigating to the build
+    const buildPage = new BuildPage(page, build)
+    await buildPage.goTo()
+
+    // Navigating to the links
+    const buildLinks = await buildPage.goToLinks()
+
+    // We expect the graph view
+    await buildLinks.expectOnGraphView()
+    await buildLinks.expectBuildGraphNodeVisible(build)
+    await buildLinks.expectBuildGraphNodeVisible(target)
+
+    // Switching to the tree view
+    await buildLinks.switchView()
+    await buildLinks.expectOnTreeView()
+    await buildLinks.expectBuildTreeNodeVisible(build)
+    await buildLinks.expectBuildTreeNodeVisible(target)
+
+    // Switching to the graph view again
+    await buildLinks.switchView()
+    await buildLinks.expectOnGraphView()
+    await buildLinks.expectBuildGraphNodeVisible(build)
+    await buildLinks.expectBuildGraphNodeVisible(target)
 })
\ No newline at end of file
diff --git a/ontrack-web-tests/tests/core/builds/buildLinks.js b/ontrack-web-tests/tests/core/builds/buildLinks.js
new file mode 100644
index 0000000000..d8a8b531e8
--- /dev/null
+++ b/ontrack-web-tests/tests/core/builds/buildLinks.js
@@ -0,0 +1,35 @@
+import {expect} from "@playwright/test";
+
+export class BuildLinksPage {
+    constructor(page) {
+        this.page = page
+    }
+
+    async expectOnGraphView() {
+        // We expect the switch to the opposite view ("tree") to be available
+        await expect(this.page.getByTestId("build-links-mode-tree")).toBeVisible()
+    }
+
+    async expectOnTreeView() {
+        // We expect the switch to the opposite view ("graph") to be available
+        await expect(this.page.getByTestId("build-links-mode-graph")).toBeVisible()
+    }
+
+    async expectBuildGraphNodeVisible(build) {
+        await expect(this.page
+            .getByTestId(`ot-build-link-node-${build.id}`)
+            .getByRole("link", {name: build.name})
+        ).toBeVisible()
+    }
+
+    async expectBuildTreeNodeVisible(build) {
+        await expect(this.page
+            .getByRole('tree')
+            .getByRole("link", {name: build.name})
+        ).toBeVisible()
+    }
+
+    async switchView() {
+        await this.page.locator(".ot-build-links-mode-button").click()
+    }
+}
\ No newline at end of file