the source does not support what is contained in the article, and
despite the source not supporting the article, the source still contains useful information on the topic.
For example, if the article says that 26% of statistics are made up, and the source says that statistics are made up without giving a percentage, then that information has failed verification. If you are unable to fix the error, then you should tag the information as not matching the named source. If the discrepancy between the source and the article isn't obvious, then please explain the situation in detail on the talk page.
{{Failed verification}} (inline citation) use when an inline citation to a source is given, the sources has been checked and the source does not support what is contained in the article.
{{Unreliable source?}} (inline citation) use when an inline citation to a source is given, but it is questionable whether the source used is reliable for supporting the statement.
{{Unreliable source?|certain=y}} (inline citation) use when an inline citation to a source is given, but it is an unreliable source.
{{Cite check}}, (article/section hatnote) may have inappropriate or misinterpreted citations