diff --git a/.changeset/chilly-pugs-doubt.md b/.changeset/chilly-pugs-doubt.md
new file mode 100644
index 0000000000..21f68cc002
--- /dev/null
+++ b/.changeset/chilly-pugs-doubt.md
@@ -0,0 +1,6 @@
+---
+"@medusajs/medusa": patch
+"@medusajs/types": patch
+---
+
+fix(medusa, types): Mark properties as nullable to reflect their correct types
diff --git a/packages/medusa/src/models/product-variant.ts b/packages/medusa/src/models/product-variant.ts
index 3d921eb506..32b2f3f4d6 100644
--- a/packages/medusa/src/models/product-variant.ts
+++ b/packages/medusa/src/models/product-variant.ts
@@ -46,24 +46,24 @@ export class ProductVariant extends SoftDeletableEntity {
   })
   prices: MoneyAmount[]
 
-  @Column({ nullable: true })
+  @Column({ nullable: true, type: "text" })
   @Index({ unique: true, where: "deleted_at IS NULL" })
-  sku: string
+  sku: string | null
 
-  @Column({ nullable: true })
+  @Column({ nullable: true, type: "text" })
   @Index({ unique: true, where: "deleted_at IS NULL" })
-  barcode: string
+  barcode: string | null
 
-  @Column({ nullable: true })
+  @Column({ nullable: true, type: "text" })
   @Index({ unique: true, where: "deleted_at IS NULL" })
-  ean: string
+  ean: string | null
 
-  @Column({ nullable: true })
+  @Column({ nullable: true, type: "text" })
   @Index({ unique: true, where: "deleted_at IS NULL" })
-  upc: string
+  upc: string | null
 
-  @Column({ nullable: true, default: 0 })
-  variant_rank: number
+  @Column({ nullable: true, type: "text", default: 0 })
+  variant_rank: number | null
 
   @Column({ type: "int" })
   inventory_quantity: number
@@ -74,29 +74,29 @@ export class ProductVariant extends SoftDeletableEntity {
   @Column({ default: true })
   manage_inventory: boolean
 
-  @Column({ nullable: true })
-  hs_code: string
+  @Column({ nullable: true, type: "text" })
+  hs_code: string | null
 
-  @Column({ nullable: true })
-  origin_country: string
+  @Column({ nullable: true, type: "text" })
+  origin_country: string | null
 
-  @Column({ nullable: true })
-  mid_code: string
+  @Column({ nullable: true, type: "text" })
+  mid_code: string | null
 
-  @Column({ nullable: true })
-  material: string
+  @Column({ nullable: true, type: "text" })
+  material: string | null
 
   @Column({ type: "int", nullable: true })
-  weight: number
+  weight: number | null
 
   @Column({ type: "int", nullable: true })
-  length: number
+  length: number | null
 
   @Column({ type: "int", nullable: true })
-  height: number
+  height: number | null
 
   @Column({ type: "int", nullable: true })
-  width: number
+  width: number | null
 
   @OneToMany(() => ProductOptionValue, (optionValue) => optionValue.variant, {
     cascade: true,
@@ -113,7 +113,7 @@ export class ProductVariant extends SoftDeletableEntity {
   inventory_items: ProductVariantInventoryItem[]
 
   @DbAwareColumn({ type: "jsonb", nullable: true })
-  metadata: Record<string, unknown>
+  metadata: Record<string, unknown> | null
 
   purchasable?: boolean
 
diff --git a/packages/types/src/inventory/common.ts b/packages/types/src/inventory/common.ts
index 1e3af18cea..640f38d458 100644
--- a/packages/types/src/inventory/common.ts
+++ b/packages/types/src/inventory/common.ts
@@ -220,19 +220,19 @@ export type FilterableInventoryItemProps = {
 }
 
 export type CreateInventoryItemInput = {
-  sku?: string
-  origin_country?: string
-  mid_code?: string
-  material?: string
-  weight?: number
-  length?: number
-  height?: number
-  width?: number
-  title?: string
-  description?: string
-  thumbnail?: string
+  sku?: string | null
+  origin_country?: string | null
+  mid_code?: string | null
+  material?: string | null
+  weight?: number | null
+  length?: number | null
+  height?: number | null
+  width?: number | null
+  title?: string | null
+  description?: string | null
+  thumbnail?: string | null
   metadata?: Record<string, unknown> | null
-  hs_code?: string
+  hs_code?: string | null
   requires_shipping?: boolean
 }
 
@@ -242,7 +242,7 @@ export type CreateReservationItemInput = {
   location_id: string
   quantity: number
   description?: string
-  created_by?: string 
+  created_by?: string
   external_id?: string
   metadata?: Record<string, unknown> | null
 }