Enterprise Administration > Implementing Windchill ESI > Implementing Windchill ESI in an SAP Environment > Understanding Windchill ESI Architecture > Message Logging, Error Handling, and Return Messaging > Return Messaging to Windchill
  
Return Messaging to Windchill
Windchill ESI EAI software components send a subtransaction PostResult message for every object/action/organization (including Parts, BOMs, and Documents, CNs, DocumentLinks, Process Plans and resources). The Message field of the ESIPostResult schema is a string field that contains explanatory text about the status of the object (for more information on the structure of the PostResult schema, see the Windchill Enterprise Systems Integration Open Application Programming Interface Guide). This field is populated with several pieces of information. The following table describes the structure of the message field. The fields are delimited using a global variable ESIMessaging/Delimiter, which is set to a double pipe (||) by default. This delimiter is also prepended to the entire message string field. This is a feature put in to allow the source application to be able to dynamically parse the message using the delimiter specified in the message.