Diagnosis
The address reference transfer structure APPL_KEY field was not filled.
The application object key is entered here in the composite form Client+ (BOR) object key.
Example:
The APPL_KEY '001US02' is passed for company code "US02" in client 001
When the key is concatenated, no spaces must be lost if the key isassembled from several fields.

System Response
The System cannot assign a number for this address as no validreference was specified.

Procedure
Pass the field as specified in the function module parameterdocumentation.