Enterprise Administration > Implementing Windchill ESI > Implementing Windchill ESI in an SAP Environment > SAP API Structures > Update Routing Using ZRFC_MODIFY_ROUTING
  
Update Routing Using ZRFC_MODIFY_ROUTING
The following API structure tables list all the APIs and the respective API fields that are required to update routings within the current version of SAP distribution targets. These APIs are listed in the order in which they are invoked.