How to restrict a custom Multi-select dropdown field to be not selected with more than two values

[Akbar N]

Hi, 

I have scenario where the given multi-select custom field in create / edit screen should not be allowed to choose more than two values. 

Say the Multi-select field will have ten values listed, the user is allowed to select only two values and selecting more than two value will need to be thrown with an error before the request is getting created. 

Is there a way i can able to achieve it with Behavior plugin? 

[Alejandro Suárez _Tecnofor_]

Hi @Akbar N ,

You can use a Simple Script Validator:

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.issue.fields.CustomField

CustomFieldManager customFieldManager = ComponentAccessor.getCustomFieldManager()

CustomField dosOpciones = customFieldManager.getCustomFieldObject(11111L)
def optionList = issue.getCustomFieldValue(dosOpciones).size()

optionList <= 2

[Swarna Radha]

Hi @Alejandro Suárez _Tecnofor_ ,

I am getting error in this line 

def optionList = issue.getCustomFieldValue(dosOpciones).size()

Please advice.

Thanks,

Swarna 

[Alejandro Suárez _Tecnofor_]

Hi @Swarna Radha you have to change the ID of the field to match your CustomField ID