Created attachment 125222 [details]
Framework with problem, used for audio
KOHA version 18.11, Ubuntu 20.04.3
When cataloging a new audio item I get an error if the line for tag 20 or 24 are not blank. I am using a framework for audio items. When I used a framework for books earlier I did not encounter this problem even though I did enter a 13 digit ISBN for that title.
Tag "20" is not a valid tag. at /usr/share/koha/lib/C4/Biblio.pm line 2517.
Tag "24" is not a valid tag. at /usr/share/koha/lib/C4/Biblio.pm line 2517.
I can't have any number in the input field for 20 ISBN 13, or 24 for a 12 or 13 bit UPC or EAN. If both are blank then the save works. A subsequent edit also fails to save if either of these tag input fields are not blank.
Today I used 2 other frameworks, 1 for books and 1 for DVD/Video and I had no problem entering an ISBN value.
I have exported the 2 different frameworks and can't see any differences for these tags.
This sounds like a support query rather than a bug report.
I'd suggest trying the mailing lists, IRC, or a support company: https://koha-community.org/support/.
Problem resolved. Update to 21.05 reported problem as error 500. Found by examining log and the file it pointed to the problems that the tag specified in the framework should be 020, and not 20. Ditto for tag 24 in the framework should be 024.