This is just to share an experience I had while doing some XML transform mappings. I had a sample ProcessCustomerPartyMaster BOD and I used the graphical mapper to transform this into SyncCustomerPartyMaster. To read this Process BOD file, I used a file drop location and directly saved an XML in this path using NotePad++. Once this file went through the mapping in Dataflow, it generates an error saying,
The issue was, NotePad++ saves XML files with byte-order-mark (BOM) and in the graphical mapper as a default, BOM is set to be "no".
<xsl:output method="xml" encoding="UTF-8" indent="no" byte-order-mark="no"/>
BOM is used to identify whether the file is in big-endian or little-endian. In UTF-8 this is not mandatory. In my NotePad++ I was using the encoding method UTF-8 without BOM, but still, when I save the file it saved with BOM.
There might be another option in NotePad++ to save without BOM, but I switched to another notepad (Sublime Text) and it worked without any issue.