Custom Fields enable or disable based on their other custom field values.

[VENKATESHWARARAO]

In my project(Project A) i have one custom field i.e custom field1 ( type check box) this check box only will enable based on the other two custom field values i.e custom field2 (type drop down) and custom field3 (type drop down). custom field2 values (none,A,B,C,D) and custom field3 values( none, E,F,G,H) custom field1 only enable except the values custom field2(none) and custom field3(none).

[Brant Schroeder]

You can include javascript in the custom field description which activates and disables field B depending on state of field A.  I would recommend using an app like ScriptRunner to accomplish this though - https://community.atlassian.com/t5/Jira-questions/How-to-enable-disable-custom-field-based-on-another-custom-field/qaq-p/1148589

[Cristian Ionescu]

Hi VENKATESHWARARAO,

Jira do not support Bundle Fields out of the box.

You can do this with addons:

https://marketplace.atlassian.com/search?query=bundle%20fields