diff --git a/.changeset/7470-designer-objectname-not-required.md b/.changeset/7470-designer-objectname-not-required.md
new file mode 100644
index 0000000000..1b23a1f266
--- /dev/null
+++ b/.changeset/7470-designer-objectname-not-required.md
@@ -0,0 +1,21 @@
+---
+'@object-ui/plugin-map': patch
+'@object-ui/plugin-gantt': patch
+---
+
+fix(plugin-map, plugin-gantt): the registrations no longer declare `objectName` a required input
+
+Both renderers read their records from one of three keys (`data`, then
+`staticData`, then `objectName`), and the `object-map` / `object-gantt` zod schemas
+enforce "one of the three" through `requireRecordSource` (objectui#6939). The
+registrations' designer-facing `inputs` still said `objectName` was required, on
+`object-map`, `map` and `object-gantt`, so the html tier's validator reported a
+`missing-required-prop` error on a block authored on `staticData` or `data` that
+the schema accepts and the renderer draws.
+
+`objectName` is now declared without `required`, and its description states the
+rule: the record source is one of `data`, `staticData` and `objectName`, and the
+schema refuses a block that declares none of them. No one-of form was added to the
+input declaration; the zod refinement stays the place that enforces it. The
+renderers' read order is unchanged. The `@object-ui/plugin-gantt` README sentence
+that called `objectName` required is corrected (objectui#7470).
diff --git a/packages/plugin-gantt/README.md b/packages/plugin-gantt/README.md
index 293e6a9d7a..12e9804616 100644
--- a/packages/plugin-gantt/README.md
+++ b/packages/plugin-gantt/README.md
@@ -138,8 +138,10 @@ claim these schema types:
 | `object-gantt` | `plugin-gantt:object-gantt` | `ObjectGanttRenderer` |
 
 Both spellings of the surviving key resolve — `register` stores the namespaced key
-*and* a bare-`type` fallback. It declares two inputs: `objectName` (required) and
-the `gantt` configuration object.
+*and* a bare-`type` fallback. It declares two inputs: `objectName` and the `gantt`
+configuration object. `objectName` is not a required input: the record source is
+one of `data`, `staticData` and `objectName` (read in that order), and the
+`object-gantt` schema refuses a block that declares none of them.
 
 > **The bare `gantt` key is retired** (objectui#8008, ruled 2026-09-09). This
 > table used to carry a second row, `gantt` / `view:gantt`, on the same renderer.
diff --git a/packages/plugin-gantt/src/__tests__/recordSourceInput-7470.test.ts b/packages/plugin-gantt/src/__tests__/recordSourceInput-7470.test.ts
new file mode 100644
index 0000000000..0b2196208d
--- /dev/null
+++ b/packages/plugin-gantt/src/__tests__/recordSourceInput-7470.test.ts
@@ -0,0 +1,77 @@
+/**
+ * ObjectUI
+ * Copyright (c) 2024-present ObjectStack Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+/**
+ * objectui#7470 — the designer face stops claiming `objectName` is required.
+ *
+ * `ObjectGantt`'s `getDataConfig` reads `data`, then `staticData`, then
+ * `objectName`, and the `object-gantt` zod schema carries `requireRecordSource`
+ * (objectui#6939): one of the three must be present, none is required alone.
+ * The registration still declared `objectName` with `required: true`, so the
+ * registry said the opposite of the schema — and `sdui-parser`'s `validateTree`
+ * turns a required input into a `missing-required-prop` ERROR, which a
+ * `staticData`-only gantt drew while the schema accepted it.
+ *
+ * Ruled (letter align): drop `required`, state the one-of rule in the
+ * description, add no one-of vocabulary to the input declaration.
+ *
+ * `object-gantt` is the one registration key: the bare `gantt` key is retired
+ * (objectui#8008, pinned by `bare-gantt-node-key-retired-8008.test.ts`).
+ *
+ * Rows:
+ * 1. `objectName` is declared (non-vacuity) and is not required.
+ * 2. Its description names all three record sources.
+ * 3. The description's claim about the schema is TRUE: `ObjectGanttSchema`
+ *    refuses a block with none of the three with the refinement's own code,
+ *    and accepts a block authored on `staticData` alone.
+ */
+
+import { describe, it, expect } from 'vitest';
+import { ComponentRegistry } from '@object-ui/core';
+import { ObjectGanttSchema } from '@object-ui/types/zod';
+// Module scope, not a hook: this import IS the registration (AGENTS.md
+// test-discipline section).
+import '../index';
+
+const objectNameInput = () =>
+  ((ComponentRegistry.getConfig('object-gantt', 'plugin-gantt') as any)?.inputs ?? []).find(
+    (i: any) => i.name === 'objectName',
+  );
+
+describe('objectui#7470 — the object-gantt registration does not declare objectName required', () => {
+  it('objectName is declared and not required', () => {
+    const input = objectNameInput();
+    expect(input, 'object-gantt declares objectName').toBeDefined();
+    expect(input.required).not.toBe(true);
+  });
+
+  it('the description names the three record sources', () => {
+    const description: string = objectNameInput()?.description ?? '';
+    for (const key of ['`data`', '`staticData`', '`objectName`']) {
+      expect(description).toContain(key);
+    }
+    expect(description).toContain('`object-gantt` schema refuses');
+  });
+
+  it('the schema the description names refuses a block with no record source', () => {
+    const parsed = ObjectGanttSchema.safeParse({ type: 'object-gantt' });
+    expect(parsed.success).toBe(false);
+    const codes = parsed.success
+      ? []
+      : parsed.error.issues.map((issue: any) => issue.params?.code);
+    expect(codes).toContain('RECORD_SOURCE_REQUIRED');
+  });
+
+  it('control: the same schema accepts a block authored on staticData alone', () => {
+    const parsed = ObjectGanttSchema.safeParse({
+      type: 'object-gantt',
+      staticData: [{ id: '1', title: 'Task', start: '2026-01-01', end: '2026-01-02' }],
+    });
+    expect(parsed.success).toBe(true);
+  });
+});
diff --git a/packages/plugin-gantt/src/index.tsx b/packages/plugin-gantt/src/index.tsx
index cf28d634e1..e42da87907 100644
--- a/packages/plugin-gantt/src/index.tsx
+++ b/packages/plugin-gantt/src/index.tsx
@@ -112,12 +112,17 @@ export const ObjectGanttRenderer: React.FC<{ schema: any }> = elementDataSourceB
   );
 });
 
+// `objectName` is NOT a required input (objectui#7470): `getDataConfig` reads
+// `data`, then `staticData`, then `objectName`, and the `object-gantt` zod
+// schema (`requireRecordSource`, objectui#6939) is where "one of the three" is
+// enforced. The input list is a flat declaration with a boolean `required`, so
+// it states the rule in the description rather than growing a one-of form.
 ComponentRegistry.register('object-gantt', ObjectGanttRenderer, {
   namespace: 'plugin-gantt',
   label: 'Object Gantt',
   category: 'view',
   inputs: [
-    { name: 'objectName', type: 'string', required: true },
+    { name: 'objectName', type: 'string', description: 'ObjectQL object name. The record source is one of `data`, `staticData` and `objectName`; the `object-gantt` schema refuses a block that declares none of them.' },
     { name: 'gantt', type: 'object', description: 'startDateField, endDateField, titleField, progressField, percentageField, colorField, dependenciesField' },
   ],
 });
diff --git a/packages/plugin-map/src/index.recordSourceInput-7470.test.tsx b/packages/plugin-map/src/index.recordSourceInput-7470.test.tsx
new file mode 100644
index 0000000000..399b21c01c
--- /dev/null
+++ b/packages/plugin-map/src/index.recordSourceInput-7470.test.tsx
@@ -0,0 +1,91 @@
+/**
+ * ObjectUI
+ * Copyright (c) 2024-present ObjectStack Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+/**
+ * objectui#7470 — the designer face stops claiming `objectName` is required.
+ *
+ * `ObjectMap`'s `getDataConfig` reads `data`, then `staticData`, then
+ * `objectName`, and the `object-map` zod schema carries `requireRecordSource`
+ * (objectui#6939): one of the three must be present, none is required alone.
+ * Both registration keys still declared `objectName` with `required: true`, so
+ * the registry said the opposite of the schema — and `sdui-parser`'s
+ * `validateTree` turns a required input into a `missing-required-prop` ERROR,
+ * which a `staticData`-only map drew while the schema accepted it.
+ *
+ * Ruled (letter align): drop `required`, state the one-of rule in the
+ * description, add no one-of vocabulary to the input declaration.
+ *
+ * Rows, per registration key:
+ * 1. `objectName` is declared (non-vacuity: a wrong type/namespace read fails
+ *    here) and is not required.
+ * 2. Its description names all three record sources.
+ * 3. The description's claim about the schema is TRUE: `ObjectMapSchema`
+ *    refuses a block with none of the three with the refinement's own code,
+ *    and accepts a block authored on `staticData` alone.
+ */
+
+import { describe, it, expect, vi } from 'vitest';
+
+// `src/index.tsx` pulls in the real map bindings; stub them so a plain module
+// import needs no WebGL canvas (same stub as `index.registration.test.tsx`).
+vi.mock('react-map-gl/maplibre', () => ({
+  default: () => null,
+  Map: () => null,
+  NavigationControl: () => null,
+  Marker: () => null,
+  Popup: () => null,
+}));
+
+import { ComponentRegistry } from '@object-ui/core';
+import { ObjectMapSchema } from '@object-ui/types/zod';
+// Module scope, not a hook: this import IS the registration (AGENTS.md
+// test-discipline section).
+import './index';
+
+const MAP_KEYS = [
+  { label: 'object-map', type: 'object-map', namespace: 'plugin-map' },
+  { label: 'view:map', type: 'map', namespace: 'view' },
+] as const;
+
+const objectNameInput = (type: string, namespace: string) =>
+  ((ComponentRegistry.getConfig(type, namespace) as any)?.inputs ?? []).find(
+    (i: any) => i.name === 'objectName',
+  );
+
+describe('objectui#7470 — map registrations do not declare objectName required', () => {
+  it.each(MAP_KEYS)('$label — objectName is declared and not required', ({ type, namespace }) => {
+    const input = objectNameInput(type, namespace);
+    expect(input, `${type} declares objectName`).toBeDefined();
+    expect(input.required).not.toBe(true);
+  });
+
+  it.each(MAP_KEYS)('$label — the description names the three record sources', ({ type, namespace }) => {
+    const description: string = objectNameInput(type, namespace)?.description ?? '';
+    for (const key of ['`data`', '`staticData`', '`objectName`']) {
+      expect(description).toContain(key);
+    }
+    expect(description).toContain('`object-map` schema refuses');
+  });
+
+  it('the schema the description names refuses a block with no record source', () => {
+    const parsed = ObjectMapSchema.safeParse({ type: 'object-map' });
+    expect(parsed.success).toBe(false);
+    const codes = parsed.success
+      ? []
+      : parsed.error.issues.map((issue: any) => issue.params?.code);
+    expect(codes).toContain('RECORD_SOURCE_REQUIRED');
+  });
+
+  it('control: the same schema accepts a block authored on staticData alone', () => {
+    const parsed = ObjectMapSchema.safeParse({
+      type: 'object-map',
+      staticData: [{ id: '1', lat: 1, lng: 2 }],
+    });
+    expect(parsed.success).toBe(true);
+  });
+});
diff --git a/packages/plugin-map/src/index.tsx b/packages/plugin-map/src/index.tsx
index a673652637..524bb2d135 100644
--- a/packages/plugin-map/src/index.tsx
+++ b/packages/plugin-map/src/index.tsx
@@ -59,12 +59,17 @@ export const ObjectMapRenderer: React.FC<any> = elementDataSourceBlock(({ schema
   );
 });
 
+// `objectName` is NOT a required input (objectui#7470): `getDataConfig` reads
+// `data`, then `staticData`, then `objectName`, and the `object-map` zod schema
+// (`requireRecordSource`, objectui#6939) is where "one of the three" is
+// enforced. The input list is a flat declaration with a boolean `required`, so
+// it states the rule in the description rather than growing a one-of form.
 ComponentRegistry.register('object-map', ObjectMapRenderer, {
   namespace: 'plugin-map',
   label: 'Object Map',
   category: 'view',
   inputs: [
-    { name: 'objectName', type: 'string', required: true },
+    { name: 'objectName', type: 'string', description: 'ObjectQL object name. The record source is one of `data`, `staticData` and `objectName`; the `object-map` schema refuses a block that declares none of them.' },
     { name: 'map', type: 'object', description: 'latitudeField, longitudeField, titleField' },
   ],
 });
@@ -74,7 +79,7 @@ ComponentRegistry.register('map', ObjectMapRenderer, {
   label: 'Map View',
   category: 'view',
   inputs: [
-    { name: 'objectName', type: 'string', required: true },
+    { name: 'objectName', type: 'string', description: 'ObjectQL object name. The record source is one of `data`, `staticData` and `objectName`; the `object-map` schema refuses a block that declares none of them.' },
     { name: 'map', type: 'object', description: 'latitudeField, longitudeField, titleField' },
   ],
 });