model Product {
id           String          @id @default(uuid())
storeId      String
store        Store           @relation("StoreToProduct", fields: [storeId], references: [id])
categoryId   String 
category     Category     @relation("CategoryToProduct", fields: [categoryId], references:[id])
name         String
price        Decimal
sizeId       String
size         Size            @relation(fields: [sizeId], references: [id])
colorId      String
color        Color           @relation(fields: [colorId], references: [id])
images       Image[]
saleItems    SaleItem[]
createdAt    DateTime        @default(now())
updatedAt    DateTime        @updatedAt

@@index([storeId])
@@index([categoryId])
@@index([sizeId])
@@index([colorId])

}

I am building a NextJS App with Prisma, and I have the above Prisma model that I would like to make the sizeId and the colorId as optional items for the Product form, and I do not know how to do it with Prisma(Some say it is not possible).
Thanks in advance.