Thank you so much Bastian! it was so helpful!... But I have another problem, now I want to read a parameter from the url http call, but I have some problems with this. I'm doing this
<xsl:template name="transform">
<CodigoArticulo>
<xsl:value-of select="$vpCodigoArticulo"/>
</CodigoArticulo>
<xsl:variable name="CodigoArticulo" select="/vpf:Msg/@*/b1im:vpCodigoArticulo"/>
<sql>
SELECT ItemCode, ItemName FROM OITM WHERE ItemCode = '<xsl:value-of select="$CodigoArticulo"/>'
</sql>
</xsl:template>
but I can't get the value I'm sending from the http call, could you help me with this? Many thanks in advance!