--- title: "Service method pipelines" slug: "service-method-pipelines" abstract: "Overview of service method pipelines with descriptions of the associated cart data and properties." --- # Service method pipelines Each service method launches a pipeline with the same name. As part of the initial pipeline being executed, one or more additional or shared pipelines can be called and executed. For example, `SaveCart` or `SynchronizeProductArtifacts`. In Sitecore, the default pipeline arguments contain `Request` and `Result` properties, which have Properties of type `dictionary`, and can contain arbitrary data to be used by pipeline processors. Commerce Connect uses the `Request.Properties` dictionary to store data that you need to synchronize. There are processors that read and write the custom data. Values that are stored in `Request.Properties`  are internal temporary data used to carry information between the processors in the pipeline. For example, the `CreateOrResumePipeline` includes the `FindCartInEAState` processor that stores the ID of the cart. This ID is then used in the `RunLoadCart` processor to specify the ID of the cart to be loaded. Data read and stored in the `Request.Properties` dictionary is visible between processors within the pipeline. The following table contains a description of the cart data related to the pipelines stored in the pipeline arguments `Request.Properties`: | Pipeline | Property name | Data description | | --- | --- | --- | | `CreateOrResumeCart` | `CartId` | Holds the ID of the cart found in the writer processor and consumed by the reader processor in order to load the cart from the external system.

Writer processor:

`FindCartInEaState`

Reader processor:

`RunLoadCart` | | `ResumeCart` | `CartSourceStateId` | Holds the ID of the cart state that the `MoveVisitorToInitialState` processor moves visitors from.

Writer processor:

`CheckCanBeResumed`

Reader processor:

`MoveVisitorToInitialState` | | | `CartDestinationStateId` | Holds the ID of the cart state that the `MoveVisitorToInitialState` processor moves visitors to.

Writer processor:

`CheckCanBeResumed`

Reader processor:

`MoveVisitorToInitialState` | The following table contains the data of the product related pipelines: | Pipeline | Property name | Custom data description | | | --- | --- | --- | --- | | `GetSitecoreProductList` | `SitecoreProductIds` | Holds a list of the product IDs of Sitecore.

Writer processor

`GetSitecoreProductList`

Reader processor

`EvaluateProductListUnionToSynchronize` | | | `SynchronizeClassifications` | `SitecoreClassificationGroups` | Holds the classification groups in Sitecore to be synchronized.

Writer processor:

`ReadSitecoreClassifications`

Reader processor

`ResolveClassificationsChanges` | | | | `ClassificationGroups` | Holds the classification groups in the external commerce system to be synchronized.

Writer processor:

`ReadExternalCommerceSystemClassifications`

Reader processors:

| | | `SynchronizeClassificationsSpecifications` | `ProductClassificationGroups` | Holds the product classification groups to be synchronized.

Writer processor:

`ReadExternalCommerceSystemClassificationsSpecifications`

Reader processor:

`SaveClassificationsSpecificationsToSitecore` | | | `SynchronizeDivisions` | `SitecoreDivisions` | Holds product divisions in Sitecore to be synchronized.

Writer processor:

`ReadSitecoreDivisions`

Reader Processor:

`ResolveDivisionsChanges` | | | | `Divisions` | Holds the product divisions in the external commerce system to be synchronized.

Writer processors:

`ResolveManufacturersChanges`

`ReadExternalCommerceSystemManufacturers`

Reader processor:

`ResolveDivisionsChanges` | | | `SynchronizeManufacturers` | `SitecoreManufacturers` | Holds the Sitecore manufacturer to be synchronized.

Writer processor:

`ReadSitecoreManufacturers`

Reader processor:

`ResolveManufacturersChanges` | | | | `Manufacturer`s | Holds a list of the manufacturers in the external commerce system to be synchronized.

Writer processor:

`ReadExternalCommerceSystemManufacturers`

Reader processors:

| | | `SynchronizeProductEntity` | `ProductFromSitecore` | Holds the products in Sitecore to be synchronized with the external commerce system.

Writer processor:

`ReadProductFromSitecore`

Reader processor:

`ResolveProductChanges` | | | | `Product` | Holds a product from the external commerce system with Sitecore.

Writer processor:



Reader processor:

`ResolveProductChanges` | | | `SynchronizeTypes` | `SitecoreProductTypes` | Holds the product types in Sitecore to be synchronized with the external commerce systems.

Writer processor:

`ReadSitecoreTypes`

Reader processor:

`ResolveTypesChanges` | | | | `ProductTypes` | Holds the product types in the external commerce systems to be synchronized with Sitecore.

Writer processor:

`ReadExternalCommerceSystemTypes`

Reader processors:

| | | `SynchronizeGlobalSpecifications` | `Specifications` | Holds the product specifications to be synchronized.

Writer processor:

`ReadExternalCommerceSystemGlobalSpecifications`

Reader processor:

`SaveGlobalSpecificationsToSitecore` | | | `SynchronizeProductDivisions` | `DivisionIds` | Holds the division IDs to be synchronized.

Write processor:

`ReadExternalCommerceSystemProductDivisions`

Reader processor:

`SaveProductDivisionsToSitecore` | | | `SynchronizeProductManufacturers` | `ManufacturerIds` | Holds the manufacturer IDs to be synchronized.

Writer processor:

`ReadExternalCommerceSystemProductManufacturers`

Reader processor:

`SaveProductManufacturersToSitecore` | | | `SynchronizeProductResources` | `ProductResources` | Holds the product resources to be synchronized.

Writer processor:

`ReadExternalCommerceSystemProductResourceBase`

Reader processor:

`SaveProductResourcesToSitecore` | | | `SynchronizeProducts` | `ExternalCommerceSystemProductIds` | Holds the product IDs in the external commerce systems to be synchronized.

Writer processor:

`GetExternalCommerceSystemProductList (pipeline: GetExternalCommerceSystemProductList)`

Reader processor:

`EvaluateProductListUnionToSynchronize` | | | `SynchronizeProductTypes` | `ProductTypeIds` | Holds the product type IDs to be synchronized.

Writer processor:

`ReadExternalCommerceSystemProductTypes`

Reader processor:

`SaveProductTypesToSitecore` | | | `SynchronizeResources` | `Resources` | Holds the product resources to be synchronized.

Writer processor:

`ReadExternalCommerceSystemResources`

Reader processor:

`SaveResourcesToSitecore` | | | `SynchronizeProductRelations` | `RelatedProducts` | Holds the related products to be synchronized.

Writer processor:

`ReadExternalCommerceSystemProductRelationsBase`

Reader processor:

`SaveProductRelationsToSitecore` | | | `SynchronizeTypeSpecifications` | `SpecificationCollection` | Holds the specification collection to be synchronized.

Writer processor:

`ReadSitecoreTypeSpecifications`

Reader processor:

`SaveTypeSpecificationsToExternalCommerceSystem` | |