Hi everyone, I hope you are doing well. I ´m currently working on configuring OAI Sets in Koha to expose our library records via the OAI-PMH protocol. However, I ´ve found out that some records that clearly meet the defined mappings/conditions for a specific set are not being included when harvesting or querying that set. Here are a few details about our setup: Koha version: 23.11.38 Set definition: OAI Sets mappings based on 952$8 952$0 952$7 I ´d like to know if there ´s a recommended way to validate the correct construction of these sets or debug why a record is being skipped. Specifically: Is there a way to check how Koha evaluates a specific record against the OAI set mappings before it gets exposed? Where should I look in the logs to find errors related to OAI set building or background jobs? Any advice, SQL queries to check the oai_sets / oai_sets_mappings tables against the records, or documentation links would be greatly appreciated. Thank you so much for your time and help! Best regards, Paola V. Cruciani Directora Biblioteca Especializada del Departamento de Geografía y Turismo Universidad Nacional del Sur https://bibliotecadgyt.uns.edu.ar