| id | Store-independent ID. |
| storeSpecificId | Store-specific ID. |
| type | Product type. |
Create a ProductDefinition with different Store-independent ID and Store-specific ID. Use this when you need to two IDs to be different.
| id | Store-independent ID and store-specific ID. |
| type | Product type. |
Create a ProductDefinition where the Store-independent ID is the same as the store-specific ID. Use this when you don't need the two IDs to be different.