can i make a text box appear automatically after i select options?

[ashish basnet]

For eg; if i select Ad Account, I want account ID to pop up as a text field

[Karyna Tyrnavska _SaaSJet]

Hi, @ashish basnet !

To show the text box automatically after the option is selected, use CheckBox, DropDown, or Multichoice element from the form builder. 

And after that create When/then rule by Form logic

For such cases use the Smart Jira Forms add-on.

[Joseph Chung Yin]

@ashish basnet -

You can use "FORM" setup to control the custom field display based on certain criteria.  Here is a link on the FORM functionality - 

https://support.atlassian.com/jira-service-management-cloud/docs/use-forms-in-jira-service-management/

https://docs.thinktilt.com/proforma/conditional-logic-and-dynamic-fields

Hope this helps.

Best, Joseph Chung Yin

Jira/JSM Functional Lead, Global Infrastructure Applications Team

Viasat Inc.