diff --git a/src/api/ProductAPI.ts b/src/api/ProductAPI.ts
index 709e405..36402d3 100644
--- a/src/api/ProductAPI.ts
+++ b/src/api/ProductAPI.ts
@@ -62,6 +62,10 @@ async function disable(id: string): Promise<void> {
 	await axios.post(`${PRODUCT_URI}/disable`, undefined, { params: { id } });
 }
 
+async function remove(id: string): Promise<void> {
+	await axios.post(`${PRODUCT_URI}/delete`, undefined, { params: { id } });
+}
+
 async function skuDetail(id: string): Promise<ProductSku> {
 	return await axios.post(`${PRODUCT_URI}/sku/detail`, undefined, { params: { id } });
 }
@@ -86,10 +90,18 @@ async function specCreate(spec: ProductSpec): Promise<string> {
 	return await axios.post(`${PRODUCT_URI}/spec/create`, spec);
 }
 
+async function specUpdate(spec: ProductSpec): Promise<void> {
+	await axios.post(`${PRODUCT_URI}/spec/update`, spec);
+}
+
 async function specValueCreate(value: ProductSpecValue): Promise<string> {
 	return await axios.post(`${PRODUCT_URI}/spec/value/create`, value);
 }
 
+async function specValueUpdate(value: ProductSpecValue): Promise<void> {
+	await axios.post(`${PRODUCT_URI}/spec/value/update`, value);
+}
+
 async function sellableList(page: ProductPage): Promise<Product[]> {
 	return await axios.post(`${PRODUCT_URI}/sellable/list`, withCurrentStoreId(page));
 }
@@ -155,13 +167,16 @@ export default {
 	create,
 	update,
 	disable,
+	remove,
 	skuDetail,
 	skuCreate,
 	skuUpdate,
 	skuDisable,
 	specList,
 	specCreate,
+	specUpdate,
 	specValueCreate,
+	specValueUpdate,
 	sellableList,
 	stockList,
 	stockProductList,
diff --git a/src/pages/fulfillment/OrderFulfillmentCreate.vue b/src/pages/fulfillment/OrderFulfillmentCreate.vue
index 1e211ce..34a5a3b 100644
--- a/src/pages/fulfillment/OrderFulfillmentCreate.vue
+++ b/src/pages/fulfillment/OrderFulfillmentCreate.vue
@@ -124,7 +124,15 @@
 			</t-form-item>
 		</t-form>
 		<t-popup v-model="pickerVisible" placement="bottom">
-			<t-date-time-picker v-model="draftTime" format="YYYY-MM-DD HH:mm" :mode="['date', 'minute']" title="履约时间" @cancel="pickerVisible = false" @confirm="confirmTime" />
+			<t-date-time-picker
+				v-if="pickerVisible"
+				v-model="draftTime"
+				format="YYYY-MM-DD HH:mm"
+				:mode="['date', 'minute']"
+				title="履约时间"
+				@cancel="pickerVisible = false"
+				@confirm="confirmTime"
+			/>
 		</t-popup>
 		<t-popup v-model="unitPickerVisible" placement="bottom">
 			<t-picker v-model="unitPickerDraft" :columns="unitPickerOptions" title="选择实际履约单位" @cancel="unitPickerVisible = false" @confirm="confirmUnitPicker" />
diff --git a/src/pages/product/ProductDetail.vue b/src/pages/product/ProductDetail.vue
index 0965f41..a9abfa9 100644
--- a/src/pages/product/ProductDetail.vue
+++ b/src/pages/product/ProductDetail.vue
@@ -184,6 +184,7 @@ const actionList = computed<NavBarAction[]>(() => {
 		if (product.value?.status === "ACTIVE") {
 			list.push({ key: "disable", text: "停用产品", icon: "close", theme: "danger", action: disable });
 		}
+		list.push({ key: "remove", text: "移除产品", icon: "delete", theme: "danger", action: remove });
 	}
 	return list;
 });
@@ -271,6 +272,32 @@ function disable(): void {
 	});
 }
 
+function remove(): void {
+	const id = product.value?.id;
+	if (!id) {
+		return;
+	}
+	const dialog = DialogPlugin.confirm({
+		title: "移除产品",
+		content: "仅可移除没有订单、履约、库存流水、配置引用和库存余额的产品。确定提交移除？",
+		cancelBtn: "取消",
+		confirmBtn: { content: "移除", theme: "danger" },
+		onConfirm: async () => {
+			try {
+				await ProductAPI.remove(id);
+				emitListDataChanged(listDataEventKeys.productChanged, id);
+				emitListDataChanged(listDataEventKeys.productStockChanged, id);
+				Message.success("产品已移除");
+				await router.replace("/management/products");
+			} catch (error) {
+				Message.error(getErrorMessage(error, "产品移除失败"));
+			} finally {
+				dialog.destroy();
+			}
+		}
+	});
+}
+
 onMounted(async () => {
 	navBarStore.clearRight();
 	navBarStore.setCustomRightVisible(actionList.value.length > 0);
diff --git a/src/pages/product/ProductEdit.vue b/src/pages/product/ProductEdit.vue
index 1d5ab01..573dad0 100644
--- a/src/pages/product/ProductEdit.vue
+++ b/src/pages/product/ProductEdit.vue
@@ -66,7 +66,6 @@
 							v-model="spec.name"
 							borderless
 							maxlength="32"
-							:readonly="!!spec.id"
 							placeholder="如 颜色、尺寸"
 						/>
 						<t-button
@@ -85,10 +84,11 @@
 								:key="value.clientKey"
 								class="tag"
 								variant="light-outline"
-								:content="value.name"
 								closable
 								@close="removeSpecValue(spec, spec.valueList.indexOf(value))"
-							/>
+							>
+								<t-input v-model.trim="value.name" class="value-name" borderless maxlength="32" />
+							</t-tag>
 						</div>
 					</t-form-item>
 					<t-form-item label="规格值" label-width="3.5rem">
@@ -185,6 +185,7 @@
 		<product-sku-unit-batch-editor
 			v-model="batchUnitEditorVisible"
 			v-model:unit-list="batchUnitList"
+			v-model:base-unit-migration-ratio-text="batchBaseUnitMigrationRatioText"
 			:product-type="form.productType"
 			:sku-count="form.skuList.length"
 			@apply="applyBatchUnitTemplate"
@@ -306,6 +307,7 @@ const unitEditorVisible = ref(false);
 const editingSku = ref<SkuForm>();
 const batchUnitEditorVisible = ref(false);
 const batchUnitList = ref<UnitForm[]>([]);
+const batchBaseUnitMigrationRatioText = ref("");
 const removedSkuKeySet = new Set<string>();
 const removedSkuMap = new Map<string, SkuForm>();
 
@@ -326,6 +328,7 @@ function createUnit(unit?: Partial<ProductSkuUnit>, defaultName = "件"): UnitFo
 
 function createSku(sku?: Partial<ProductSku>): SkuForm {
 	const sourceUnitList = sku?.unitList || [];
+	const originalBaseUnitId = sourceUnitList.find(unit => unit.isBase)?.id;
 	const photoItemList = (sku?.attachmentList || []).filter(item => !!item.id).map(item => ({
 		attachment: item,
 		attachType: item.attachType || "PHOTO",
@@ -344,6 +347,8 @@ function createSku(sku?: Partial<ProductSku>): SkuForm {
 		status: sku?.status || "ACTIVE",
 		minStockQuantityText: sku?.minStockQuantity === null || sku?.minStockQuantity === undefined ? "" : String(sku.minStockQuantity),
 		unitList: sourceUnitList.length ? sourceUnitList.map(unit => createUnit(unit)) : [createUnit({ isBase: true, baseQuantityPerUnit: "1" })],
+		originalBaseUnitId,
+		baseUnitMigrationRatioText: "",
 		photoItemList
 	};
 }
@@ -354,7 +359,17 @@ function createSpec(spec?: Partial<ProductSpec>): SpecForm {
 		id: spec?.id,
 		clientKey: window.crypto.randomUUID(),
 		name: spec?.name || "",
-		valueList: (spec?.valueList || []).map(value => ({ ...value, id: value.id, clientKey: window.crypto.randomUUID(), name: value.name || "", enabled: value.enabled ?? true }))
+		originalName: spec?.name || "",
+		originalSort: spec?.sort,
+		valueList: (spec?.valueList || []).map(value => ({
+			...value,
+			id: value.id,
+			clientKey: window.crypto.randomUUID(),
+			name: value.name || "",
+			originalName: value.name || "",
+			originalSort: value.sort,
+			enabled: value.enabled ?? true
+		}))
 	};
 }
 
@@ -385,7 +400,7 @@ function addSpecValue(spec: SpecForm): void {
 		Message.warning("同一规格项的规格值不能重复");
 		return;
 	}
-	spec.valueList.push({ clientKey: window.crypto.randomUUID(), name, enabled: true });
+	spec.valueList.push({ clientKey: window.crypto.randomUUID(), name, originalName: name, originalSort: spec.valueList.length, enabled: true });
 	specValueDraftMap[spec.clientKey] = "";
 }
 
@@ -417,6 +432,7 @@ function openBatchUnitEditor(): void {
 		return;
 	}
 	batchUnitList.value = sourceSku.unitList.map(unit => ({ ...unit, id: undefined, skuId: undefined, clientKey: window.crypto.randomUUID() }));
+	batchBaseUnitMigrationRatioText.value = "";
 	batchUnitEditorVisible.value = true;
 }
 
@@ -426,16 +442,10 @@ function closeBatchUnitEditor(): void {
 
 function applyBatchUnitTemplate(): void {
 	const templateList = batchUnitList.value;
-	for (const sku of form.skuList) {
-		const templateNameSet = new Set(templateList.map(unit => unit.name.trim()));
-		if (sku.unitList.some(unit => !!unit.id && !templateNameSet.has(unit.name.trim()))) {
-			Message.warning("统一配置不能删除或重命名已保存单位，请在 SKU 明细中停售");
-			return;
-		}
-	}
 	form.skuList.forEach(sku => {
 		const oldUnitList = sku.unitList;
 		const oldUnitMap = new Map(oldUnitList.filter(unit => !!unit.id).map(unit => [unit.name.trim(), unit]));
+		const oldBaseUnit = oldUnitList.find(unit => unit.isBase);
 		sku.unitList = templateList.map((unit, unitIndex) => ({
 			...unit,
 			id: oldUnitMap.get(unit.name.trim())?.id,
@@ -443,6 +453,10 @@ function applyBatchUnitTemplate(): void {
 			clientKey: window.crypto.randomUUID(),
 			sort: unitIndex
 		}));
+		const newBaseUnit = sku.unitList.find(unit => unit.isBase);
+		if (oldBaseUnit?.id && newBaseUnit && oldBaseUnit.id !== newBaseUnit.id) {
+			sku.baseUnitMigrationRatioText = batchBaseUnitMigrationRatioText.value;
+		}
 	});
 	Message.success(`已为 ${form.skuList.length} 个 SKU 统一配置销售单位`);
 }
@@ -452,7 +466,7 @@ function removeSku(index: number): void {
 	if (!sku) {
 		return;
 	}
-	if (form.skuList.length < 2) {
+	if (isCreateMode.value && form.skuList.length < 2) {
 		Message.warning("产品至少需要一个 SKU");
 		return;
 	}
@@ -463,7 +477,7 @@ function removeSku(index: number): void {
 	}
 	form.skuList.splice(index, 1);
 	if (sku.id) {
-		Message.success("SKU 已移除，保存后将停用");
+		Message.success("SKU 已移除，保存后由后端检查引用并处理");
 	}
 }
 
@@ -867,7 +881,7 @@ function validate(): boolean {
 			return false;
 		}
 	}
-	if (!form.skuList.length) {
+	if (isCreateMode.value && !form.skuList.length) {
 		Message.warning("至少需要一个 SKU");
 		return false;
 	}
@@ -929,6 +943,16 @@ function validate(): boolean {
 			Message.warning("每个 SKU 必须且只能有一个基础单位");
 			return false;
 		}
+		const selectedBaseUnit = sku.unitList.find(unit => unit.isBase);
+		const isBaseUnitChanged = !!sku.originalBaseUnitId && selectedBaseUnit?.id !== sku.originalBaseUnitId;
+		if (isBaseUnitChanged && !/^\d+(?:\.\d{1,6})?$/.test(sku.baseUnitMigrationRatioText.trim())) {
+			Message.warning("切换基础单位时，请填写有效的新旧基础单位换算比例，最多六位小数");
+			return false;
+		}
+		if (isBaseUnitChanged && !(0 < Number(sku.baseUnitMigrationRatioText))) {
+			Message.warning("新旧基础单位换算比例必须大于 0");
+			return false;
+		}
 	}
 	return true;
 }
@@ -958,7 +982,14 @@ function buildSkuPayload(sku: SkuForm, index: number): ProductSku {
 			allowPurchase: form.productType === "SERVICE" ? false : !!unit.allowPurchase,
 			allowSale: !!unit.allowSale,
 			sort: unitIndex
-		}))
+		})),
+		baseUnitMigrationRequest: sku.id && sku.originalBaseUnitId && sku.unitList.find(unit => unit.isBase)?.id !== sku.originalBaseUnitId
+			? {
+				targetUnitId: sku.unitList.find(unit => unit.isBase)?.id,
+				targetUnitName: sku.unitList.find(unit => unit.isBase)?.name.trim(),
+				oldToNewBaseRatio: sku.baseUnitMigrationRatioText.trim()
+			}
+			: undefined
 	};
 }
 
@@ -973,11 +1004,18 @@ function buildProductPayload(skuList?: ProductSku[], includeSpecList = false): P
 		status: form.status,
 		remark: form.remark?.trim() || null,
 		attachmentList: buildAttachmentList(),
-		specList: includeSpecList ? form.specList.map(spec => ({
-			...spec,
+		specList: includeSpecList ? form.specList.map((spec, specIndex) => ({
+			id: spec.id,
 			productId: form.id,
 			name: spec.name.trim(),
-			valueList: spec.valueList.map(value => ({ ...value, name: value.name.trim() }))
+			sort: specIndex,
+			valueList: spec.valueList.map((value, valueIndex) => ({
+				id: value.id,
+				specId: spec.id,
+				name: value.name.trim(),
+				enabled: value.enabled !== false,
+				sort: valueIndex
+			}))
 		})) : undefined,
 		skuList
 	};
@@ -987,11 +1025,23 @@ async function syncSpecs(productId: string): Promise<void> {
 	for (const [specIndex, spec] of form.specList.entries()) {
 		if (!spec.id) {
 			spec.id = await ProductAPI.specCreate({ productId, name: spec.name.trim(), sort: specIndex });
+			spec.originalName = spec.name.trim();
+			spec.originalSort = specIndex;
+		} else if (spec.name.trim() !== spec.originalName || specIndex !== spec.originalSort) {
+			await ProductAPI.specUpdate({ id: spec.id, productId, name: spec.name.trim(), sort: specIndex });
+			spec.originalName = spec.name.trim();
+			spec.originalSort = specIndex;
 		}
 		for (const [valueIndex, value] of spec.valueList.entries()) {
 			if (!value.id) {
 				value.specId = spec.id;
 				value.id = await ProductAPI.specValueCreate({ specId: spec.id, name: value.name.trim(), enabled: value.enabled !== false, sort: valueIndex });
+				value.originalName = value.name.trim();
+				value.originalSort = valueIndex;
+			} else if (value.name.trim() !== value.originalName || valueIndex !== value.originalSort) {
+				await ProductAPI.specValueUpdate({ id: value.id, specId: spec.id, name: value.name.trim(), enabled: value.enabled !== false, sort: valueIndex });
+				value.originalName = value.name.trim();
+				value.originalSort = valueIndex;
 			}
 		}
 	}
@@ -1018,23 +1068,17 @@ async function save(): Promise<void> {
 		await syncSpecs(productId!);
 		normalizeSkuSpecValueIds();
 		const latest = await ProductAPI.detail(productId!);
-		const previousSkuIdSet = new Set((latest.skuList || []).map(sku => sku.id).filter((id): id is string => !!id));
 		if (form.specList.length) {
 			const defaultSku = latest.skuList?.find(sku => !sku.specValueIdList?.length);
 			if (defaultSku?.id && form.skuList[0] && !form.skuList[0].id) {
 				form.skuList[0].id = defaultSku.id;
 			}
 			generateSkuList(latest.skuList || [], true);
-		} else if (!form.skuList.length) {
-			form.skuList = [createSku(latest.skuList?.[0])];
-		} else if (!form.skuList[0]?.id && latest.skuList?.[0]) {
+		} else if (form.skuList[0] && !form.skuList[0].id && latest.skuList?.[0]) {
 			form.skuList[0].id = latest.skuList[0].id;
 		}
 		const payload = buildProductPayload(form.skuList.map(buildSkuPayload));
 		await ProductAPI.update(payload);
-		const retainedSkuIdSet = new Set(form.skuList.map(sku => sku.id).filter((id): id is string => !!id));
-		const disabledSkuIdList = [...previousSkuIdSet].filter(id => !retainedSkuIdSet.has(id));
-		await Promise.all(disabledSkuIdList.map(async skuId => await ProductAPI.skuDisable(skuId)));
 		emitListDataChanged(listDataEventKeys.productChanged, productId);
 		emitListDataChanged(listDataEventKeys.productStockChanged, productId);
 		Message.success(isCreateMode.value ? "产品已创建" : "产品已保存");
@@ -1173,12 +1217,16 @@ onUnmounted(() => navBarStore.clearRight());
 				}
 			}
 
-			.tags {
-				gap: .5rem;
-				display: flex;
-				flex-wrap: wrap;
+		.tags {
+			gap: .5rem;
+			display: flex;
+			flex-wrap: wrap;
+
+			.value-name {
+				width: 5rem;
 			}
 		}
+		}
 
 		.add {
 			--td-button-border-radius: 1rem;
diff --git a/src/pages/product/component/ProductSkuEditor.vue b/src/pages/product/component/ProductSkuEditor.vue
index ec82d6f..33371a2 100644
--- a/src/pages/product/component/ProductSkuEditor.vue
+++ b/src/pages/product/component/ProductSkuEditor.vue
@@ -34,7 +34,7 @@
 		</t-cell>
 		<template #right>
 			<t-button class="delete-action swipe-cell-button" theme="danger" @click.stop="requestRemove">
-				停用
+				移除
 			</t-button>
 		</template>
 	</t-swipe-cell>
diff --git a/src/pages/product/component/ProductSkuUnitBatchEditor.vue b/src/pages/product/component/ProductSkuUnitBatchEditor.vue
index 6b208b7..c8cdef1 100644
--- a/src/pages/product/component/ProductSkuUnitBatchEditor.vue
+++ b/src/pages/product/component/ProductSkuUnitBatchEditor.vue
@@ -14,6 +14,9 @@
 			<div class="editor-context">
 				<strong>批量配置销售单位</strong>
 				<span v-text="`以下单位将应用到全部 ${props.skuCount} 个 SKU 明细`" />
+				<t-form-item label="基础单位换算比例" help="切换已有 SKU 的基础单位时填写：1 个旧基础单位等于多少个新基础单位；最多六位小数">
+					<t-input v-model.trim="baseUnitMigrationRatioText" type="number" align="right" borderless placeholder="无需切换时留空" />
+				</t-form-item>
 			</div>
 
 			<div class="unit-list">
@@ -71,6 +74,7 @@ const props = defineProps<{
 }>();
 
 const unitList = defineModel<ProductSkuUnitForm[]>("unitList", { required: true });
+const baseUnitMigrationRatioText = defineModel<string>("baseUnitMigrationRatioText", { default: "" });
 const emit = defineEmits<{
 	"update:modelValue": [value: boolean];
 	apply: [];
diff --git a/src/pages/product/component/ProductSkuUnitEditor.vue b/src/pages/product/component/ProductSkuUnitEditor.vue
index e9f268e..c3b00ec 100644
--- a/src/pages/product/component/ProductSkuUnitEditor.vue
+++ b/src/pages/product/component/ProductSkuUnitEditor.vue
@@ -27,8 +27,7 @@
 					theme="danger"
 					variant="text"
 					size="extra-small"
-					:content="unit.id ? '停售' : '删除'"
-					:disabled="!!unit.id && unit.allowSale === false && unit.allowPurchase === false"
+					content="移除"
 					@click="removeUnit(unitIndex)"
 				/>
 				</div>
@@ -39,6 +38,9 @@
 					<t-form-item label="基础单位" content-align="right">
 						<t-switch v-model="unit.isBase" size="small" :disabled="sku.unitList.length === 1" @change="setBaseUnit(unitIndex)" />
 					</t-form-item>
+					<t-form-item v-if="isBaseUnitMigrationRequired" label="新旧基础单位比例" help="填写 1 个旧基础单位等于多少个新基础单位；最多六位小数" required-mark>
+						<t-input v-model.trim="sku.baseUnitMigrationRatioText" type="number" align="right" borderless placeholder="例如 30" />
+					</t-form-item>
 					<t-form-item label="换算数量" help="1 个当前单位对应的基础单位数量" required-mark>
 						<t-input v-model.trim="unit.baseQuantityPerUnit" type="number" align="right" borderless :disabled="unit.isBase" placeholder="1" />
 					</t-form-item>
@@ -91,6 +93,12 @@ const visible = computed({
 	set: value => handleVisibleChange(value)
 });
 const unitEditorZIndex = 12100;
+const isBaseUnitMigrationRequired = computed(() => {
+	if (!sku.value?.originalBaseUnitId) {
+		return false;
+	}
+	return sku.value.unitList.find(unit => unit.isBase)?.id !== sku.value.originalBaseUnitId;
+});
 
 function handleVisibleChange(value: boolean): void {
 	emit("update:modelValue", value);
@@ -135,10 +143,7 @@ function removeUnit(index: number): void {
 	}
 	const unit = sku.value.unitList[index];
 	if (unit?.id) {
-		unit.allowSale = false;
-		unit.allowPurchase = false;
-		Message.success("单位已停售并禁止采购，历史订单仍可履约");
-		return;
+		Message.info("已移除单位将在保存时由后端检查引用后处理");
 	}
 	const wasBase = sku.value.unitList[index]?.isBase;
 	sku.value.unitList.splice(index, 1);
diff --git a/src/types/Product.ts b/src/types/Product.ts
index f0b8cf7..aa0ccbf 100644
--- a/src/types/Product.ts
+++ b/src/types/Product.ts
@@ -51,6 +51,12 @@ export type ProductSkuUnit = {
 	sort?: number;
 } & Model;
 
+export type ProductSkuBaseUnitMigrationRequest = {
+	targetUnitId?: string;
+	targetUnitName?: string;
+	oldToNewBaseRatio: number | string;
+};
+
 export type ProductSku = {
 	storeId?: string;
 	productId?: string;
@@ -67,6 +73,7 @@ export type ProductSku = {
 	updatedBy?: string;
 	specValueIdList?: string[];
 	unitList?: ProductSkuUnit[];
+	baseUnitMigrationRequest?: ProductSkuBaseUnitMigrationRequest;
 	attachmentList?: Attachment[];
 } & Model;
 
diff --git a/src/types/ProductEditor.ts b/src/types/ProductEditor.ts
index 0e0cb96..28c2dd0 100644
--- a/src/types/ProductEditor.ts
+++ b/src/types/ProductEditor.ts
@@ -4,10 +4,14 @@ import type { Product, ProductAttachmentType, ProductSku, ProductSkuUnit, Produc
 
 export type ProductSpecValueForm = ProductSpecValue & {
 	clientKey: string;
+	originalName: string;
+	originalSort?: number;
 };
 
 export type ProductSpecForm = Omit<ProductSpec, "valueList"> & {
 	clientKey: string;
+	originalName: string;
+	originalSort?: number;
 	valueList: ProductSpecValueForm[];
 };
 
@@ -21,6 +25,8 @@ export type ProductSkuForm = Omit<ProductSku, "unitList"> & {
 	unitList: ProductSkuUnitForm[];
 	minStockQuantityText: string;
 	photoItemList: PhotoItem[];
+	originalBaseUnitId?: string;
+	baseUnitMigrationRatioText: string;
 };
 
 export type ProductForm = Omit<Product, "specList" | "skuList"> & {