diff --git a/packages/cli/src/deploy-rollout-metadata.ts b/packages/cli/src/deploy-rollout-metadata.ts
index 01d3054ff..65d5a7861 100644
--- a/packages/cli/src/deploy-rollout-metadata.ts
+++ b/packages/cli/src/deploy-rollout-metadata.ts
@@ -5,11 +5,31 @@ export const DeployRolloutMetadataSchema = z
 		source: z.enum(['managed']).optional(),
 		channel: z.enum(['edge', 'stable', 'commit']).optional(),
 		rollout_org_ids: z.array(z.string().min(1)).optional(),
+		rollout_id: z
+			.string()
+			.min(1)
+			.regex(/^[A-Za-z0-9._:-]+$/)
+			.optional(),
 	})
-	.strict();
+	.passthrough();
 
 export type DeployRolloutMetadata = z.infer<typeof DeployRolloutMetadataSchema>;
 
+function hasDeployRolloutMetadata(value: DeployRolloutMetadata): boolean {
+	return Object.entries(value).some(([, fieldValue]) => {
+		if (fieldValue === undefined) {
+			return false;
+		}
+		if (Array.isArray(fieldValue)) {
+			return fieldValue.length > 0;
+		}
+		if (typeof fieldValue === 'string') {
+			return fieldValue.length > 0;
+		}
+		return true;
+	});
+}
+
 export function parseDeployRolloutMetadata(
 	raw: string | undefined
 ): DeployRolloutMetadata | undefined {
@@ -30,7 +50,7 @@ export function parseDeployRolloutMetadata(
 		const details = result.error.issues.map((issue) => issue.message).join(', ');
 		throw new Error(`Invalid deploy metadata: ${details}`);
 	}
-	if (!result.data.source && !result.data.channel && !result.data.rollout_org_ids?.length) {
+	if (!hasDeployRolloutMetadata(result.data)) {
 		return undefined;
 	}
 	return result.data;
@@ -49,18 +69,11 @@ export function mergeDeployRolloutMetadata<T extends { deployment?: Record<strin
 	if (!rolloutMetadata || !build.deployment) {
 		return build;
 	}
-	const deployment = { ...build.deployment };
-	if (rolloutMetadata.source) {
-		deployment.source = rolloutMetadata.source;
-	}
-	if (rolloutMetadata.channel) {
-		deployment.channel = rolloutMetadata.channel;
-	}
-	if (rolloutMetadata.rollout_org_ids?.length) {
-		deployment.rollout_org_ids = rolloutMetadata.rollout_org_ids;
-	}
 	return {
 		...build,
-		deployment,
+		deployment: {
+			...build.deployment,
+			...rolloutMetadata,
+		},
 	};
 }
diff --git a/packages/cli/test/deploy-rollout-metadata.test.ts b/packages/cli/test/deploy-rollout-metadata.test.ts
new file mode 100644
index 000000000..d82e0f965
--- /dev/null
+++ b/packages/cli/test/deploy-rollout-metadata.test.ts
@@ -0,0 +1,67 @@
+import { describe, expect, test } from 'bun:test';
+
+import {
+	mergeDeployRolloutMetadata,
+	parseDeployRolloutMetadata,
+} from '../src/deploy-rollout-metadata';
+
+describe('parseDeployRolloutMetadata', () => {
+	test('accepts rollout_id for Obs-triggered managed deploys', () => {
+		expect(
+			parseDeployRolloutMetadata(
+				'{"source":"managed","channel":"edge","rollout_id":"rollout_3FdsBqGeMpUSDtpBt1uz2n6Drps"}'
+			)
+		).toEqual({
+			source: 'managed',
+			channel: 'edge',
+			rollout_id: 'rollout_3FdsBqGeMpUSDtpBt1uz2n6Drps',
+		});
+	});
+
+	test('passes through unknown keys for forward-compatible managed metadata', () => {
+		expect(
+			parseDeployRolloutMetadata(
+				'{"source":"managed","channel":"edge","rollout_id":"rollout_test","initiated_by":"user_abc"}'
+			)
+		).toEqual({
+			source: 'managed',
+			channel: 'edge',
+			rollout_id: 'rollout_test',
+			initiated_by: 'user_abc',
+		});
+	});
+
+	test('rejects invalid known fields', () => {
+		expect(() => parseDeployRolloutMetadata('{"source":"github","channel":"edge"}')).toThrow(
+			'Invalid deploy metadata'
+		);
+	});
+});
+
+describe('mergeDeployRolloutMetadata', () => {
+	test('merges rollout metadata onto deployment', () => {
+		expect(
+			mergeDeployRolloutMetadata(
+				{
+					deployment: {
+						source: 'managed',
+						channel: 'edge',
+					},
+				},
+				{
+					source: 'managed',
+					channel: 'edge',
+					rollout_id: 'rollout_test',
+					initiated_by: 'user_abc',
+				}
+			)
+		).toEqual({
+			deployment: {
+				source: 'managed',
+				channel: 'edge',
+				rollout_id: 'rollout_test',
+				initiated_by: 'user_abc',
+			},
+		});
+	});
+});
diff --git a/packages/server/src/api/project/deploy.ts b/packages/server/src/api/project/deploy.ts
index ca27b51c9..e8b24078f 100644
--- a/packages/server/src/api/project/deploy.ts
+++ b/packages/server/src/api/project/deploy.ts
@@ -215,6 +215,11 @@ export const BuildMetadataSchema = z.object({
 			source: z.enum(['github', 'cli', 'managed']).optional(),
 			channel: z.enum(['edge', 'stable', 'commit']).optional(),
 			rollout_org_ids: z.array(z.string()).optional(),
+			rollout_id: z
+				.string()
+				.min(1)
+				.optional()
+				.describe('correlation id for a managed shared-source rollout wave'),
 		})
 	),
 	launch: LaunchMetadataSchema.optional().describe(