Notice! This page describes the nature of the error using a hypothetical example and not the erroneous data of the input test file. You should however be able to apply this information to your error case.
Error description:
Meaning that the element has an attribute with no value specified. The value should be given.
Example:
Element <PstlAdr> has here an attribute called "Ctry", but no value is given for the country. A value should be added, e.g. like this:
<PstlAdr Ctry="FI">
Error message given by the service:
"Specification mandate value for attribute A"
Attribute called A should be given a value.