Summary

Unable to select a few custom field checkboxes while searching for issues. It's showing a red exclamation mark with the message "<Customfield Name> is not applicable for the current project and/or issue type".

Environment

Jira Software v8.x and above.

Diagnosis

• In the Issues Search Navigator select a custom field, from the More dropdown.
• An error appears: "<Customfield Name> is not applicable for the current project and/or issue type".

Cause:1

The Search Template value could have been changed in the respective Custom Fields.

For Example - Search Template is changed to None :

Cause:2

A field is "not applicable" when the context for the custom field does not place it on that project and issue type.

Cause:3

The custom field might not have been associated with the project screens.

Cause:4

This could occur when the custom field is hidden from the Project's Field Configuration. 

Solution: 1

1. Go to Jira Settings > Issues > Custom fields.
2. Find the respective field and Edit.
3. Set the Search Template value to Free Text Searcher if it is a Text Field type custom field.

Solution: 2

1. Go to Jira Settings > Issues > Custom fields.
2. Select Configure under actions =>  Edit Configuration. You can find a context that specifies projects and/or issue types where the field belongs.
3. Please change the context with respect to the filter search you're looking for.

Solution: 3 

1. Go to Jira Settings > Issues.
2. Select Field configurations and configure.
3. Search for the custom field and click on screens to verify if the custom field is associated with the project screens.

Solution: 4

1. Go to Jira Settings > Issues.
2. Select Field configurations and configure.
3. Search for the custom field and click on Show to verify.