Trying to post attachments to Vendor master record using XK02.
Getting error message: Document Type (fieldname GOS_AR_OBJ) for Attachment file couldn't be determined. Maintain Type in SM30 Table /WINSHTLQ/DEFVAL.
While table /WINSHTLQ/DEFVAL in SM30, have entries maintained.
Confirm the version of Winshuttle Function module installed in SAP.
In the zip folder when initally installing the Function Module, there is a "Read Me" text file. Open the text file and perform the steps outlined in Step #3.
Below is the example for version 11.2 (this may vary between versions).