Created attachment 183951 [details] Test MARC file If you have a backslash next to a subfield in the data, the staging will fail if you are using the tag as a record matching rule. Most commonly, matching on 245$a (title or title-cover). For instance, in the attached file, there is a backslash right before $h =245 00$aKnights of the black earth \$h[Book] If you have 245 as matching rule, the import batch will fail.