UP0001 error during XML Data Transformation.

Technote (troubleshooting)


"UP0001 A fatal error occurred" while parsing an XML document.


The following error message is issued to the PRTFILE during DT processing of XML input:

UP0001 Severity: 08
A fatal error occurred during parsing of XML document XMLinput at line 1, column 7005. Message text from parser is Expected comment or processing instruction .**** File: EDI.TE51INT.CPP(EDIUPXML) Line: 665 Func: SAXDIHandlers::fatalError(const SAXParse


The input file is missing an XML prolog prior to each message, e.g. <?xml version="1.0"?>. The first message contains the prolog, but it's missing from subsequent documents within the same input file.

Resolving the problem

Add the needed XML prolog ahead of each document.

Document information

More support for:

WebSphere Data Interchange
WDI 3.2 for z/OS

Software version:

3.2, 3.2.1, 3.3

Operating system(s):

AIX, Platform Independent, Windows, z/OS

Software edition:

All Editions

Reference #:


Modified date:


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