diff --git a/pages/picking/picking.vue b/pages/picking/picking.vue
index 6a563f2..7ed03fe 100644
--- a/pages/picking/picking.vue
+++ b/pages/picking/picking.vue
@@ -693,7 +693,8 @@
 				return String(error?.code || '') === 'A0409' || Number(error?.statusCode) === 409
 			},
 			remoteFailureMessage(error, fallback = '操作失败') {
-				return formatApiError(error, fallback)
+				console.error('[PDA picking] failed', { message: error?.message, code: error?.code, requestId: error?.requestId, traceId: error?.traceId })
+				return formatApiError(error, fallback, false)
 			},
 			async refreshAfterTaskConflict(message) {
 				const requestedTaskId = this.remoteTaskId || this.currentBox.taskId
diff --git a/tests/picking-evidence-stage.test.mjs b/tests/picking-evidence-stage.test.mjs
index 793ac45..12154bd 100644
--- a/tests/picking-evidence-stage.test.mjs
+++ b/tests/picking-evidence-stage.test.mjs
@@ -266,9 +266,9 @@ test('picking mutations stay closed until the canonical task has been claimed',
 	}
 })
 
-test('completion shows a Chinese server failure with a request correlation id', () => {
+test('completion shows a concise Chinese failure and retains correlation ids in diagnostics', () => {
 	assert.match(page, /remoteFailureMessage\(error, fallback = '操作失败'\)/)
-	assert.match(page, /formatApiError\(error, fallback\)/)
+	assert.match(page, /formatApiError\(error, fallback, false\)/)
 	assert.match(page, /import \{ containerReference, formatApiError, sanitizeUserMessage \}/)
 	assert.match(page, /requestIdFromServer: error\.requestId/)
 	assert.match(page, /this\.remoteFailureMessage\(error, '装柜完成失败'\)/)
diff --git a/tests/user-facing-identifiers.test.mjs b/tests/user-facing-identifiers.test.mjs
index f5281b3..89b06ca 100644
--- a/tests/user-facing-identifiers.test.mjs
+++ b/tests/user-facing-identifiers.test.mjs
@@ -27,6 +27,9 @@ test('operator errors hide internal ids but retain request and trace evidence',
 	assert.match(message, /错误码：S0500/)
 	assert.match(message, /requestId：dbde0d81/)
 	assert.match(message, /traceId：5b0ba4f3/)
+	const concise = formatApiError(error, '任务处理失败', false)
+	assert.doesNotMatch(concise, /错误码|requestId|traceId|S0500/)
+	assert.match(concise, /处理失败/)
 	assert.equal(sanitizeUserMessage('operation 2092889048731414530 failed'), 'operation 内部标识已隐藏 failed')
 })
 
diff --git a/utils/user-facing.js b/utils/user-facing.js
index 57304f1..1bcd9c6 100644
--- a/utils/user-facing.js
+++ b/utils/user-facing.js
@@ -25,8 +25,9 @@ export function sanitizeUserMessage(message, fallback = '操作失败') {
 	return sanitized || fallback
 }
 
-export function formatApiError(error, fallback = '操作失败') {
+export function formatApiError(error, fallback = '操作失败', includeDiagnostics = true) {
 	const message = sanitizeUserMessage(error?.message, fallback)
+	if (!includeDiagnostics) return message
 	const code = String(error?.code ?? '').trim()
 	const requestId = String(error?.requestId ?? '').trim()
 	const traceId = String(error?.traceId ?? '').trim()