# Relations ## List product relations - [GET /ListProductRelations](https://docs.norce.io/api-reference/services/productservice/openapi/relations/listproductrelations.md): Relations connected to a product. Relations are defined as products that customer could choose to buy in addition to the current product. Supports relations like product to product, product to variant, variant to product and variant to variant. ## List product relation types - [GET /ListProductRelationTypes](https://docs.norce.io/api-reference/services/productservice/openapi/relations/listproductrelationtypes.md): Reference list of Product Relation types. The ids in the list can be used as accessoryTypeSeed in calls to ListProductAccessories/ListProductRelations.