Caused by: com.atlassian.jira.plugins.importer.imports.csv.ImportException: Priority [ Lowest ] is not in the project [ RA ] Priority Schema. Also Priority Schema couldn't be changed, because it's shared by more than one project.
at com.atlassian.jira.plugins.importer.imports.importer.impl.PriorityUtils.preFilterPriority(PriorityUtils.java:60)
at com.atlassian.jira.plugins.importer.imports.importer.impl.ExternalUtils.convertExternalIssueToIssue(ExternalUtils.java:543)
at com.atlassian.jira.plugins.importer.imports.importer.impl.DefaultJiraDataImporter.createIssue(DefaultJiraDataImporter.java:887)
I am trying to import Issues via JSON, though the priority values are available it is throwing above error.