The mapping function LoadDocumentByOid() allows access to a different document type¹⁾ within the same message of the currently loaded entity. Theoretically, any document can be loaded from eBiss²⁾ to write data coming from more than one source into a target document, for example.

LoadDocumentByOid(['Oid'])

Note: As parameter a valid DocumentOid³⁾ must be used. Otherwise the function returns <null>.

A message⁴⁾ contains a file with the delivery, and a file with the price master data. These are fetched from a receiving channel and unpacked automatically. The prices for the delivery data can now be looked up in the inbound mapping.

The Oid⁵⁾is determined with the GetMessage() function. In the example case you want the document that is within the same message and of type LSB.
First you determine the Oid with:

GetMessage()/Documents[ @DocumentType = ‚LSB‘ ]/@Oid

and writes the value into a variable, for example $oid.
Then you are able to assign the loaded Document into an abstract variable e.g: $$refDoc

LoadDocumentByOid($oid)

after that, you are able to determine the correct line from the variable refDoc for price determination:

//note: variable call with only one "$"
$refDoc/Lines[ @ArtNr = $artNr ]/@SuggestedRetailPrice

and into the target element, here for example “SuggestedRetailPrice”.

Note: The function can be executed interactively in the debugger. You can use a previously determined oid as a constant. The function result is displayed as a tree in the left window of the mapping editor as usual in the Result tab.