3621568 - Description field is cleared after updating the service order item using PATCH method

When sending a PATCH request to the API API_SERVICE_ORDER_SRV, to update a service item information, e.g. the quantity, the description of the item is cleared out.

SAP S/4HANA Cloud Public Edition.

1. Enter the request URL: https://<host>/sap/opu/odata/sap/API_SERVICE_ORDER_SRV/A_ServiceOrderItem(ServiceOrder='{ServiceOrder}',ServiceOrderItem='{ServiceOrderItem}')
2. Set the method 'PATCH'. 
3. Enter the following content in the body of the request:
   { 
     "Product": "TG11",
     "Quantity": "1",
     "ServiceOrderItemCategory": "SEW4",
     "ParentServiceOrderItem": "10"
    }

The product is included in the payload, so this clears out the product description field.

The system understands that a new product is being entered, so the 'old' product is being replaced by the 'new' product. Since the description is related to the 'old' product, and no description is entered for the 'new' product, the field is left blank.

Don't include the product on the payload if it's not being changed.

No field is mandatory on a 'PATCH' request, so only insert on the payload the ones that are going to be changed.

If the product is changed, a new description must also be included.

• Update Service Order Item | SAP Help Portal

API_SERVICE_ORDER_SRV, ServiceOrderItemDescription, product description, item description, item text, PATCH, UPDATE, service order item , KBA , CRM-S4-SRV-SVO-2CL , S4CRM: Service Order (Public Cloud) , Problem