Adaptavist scripted field to a numeric field

[tania_bernal_ssss_gouv_qc_ca]

My code

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.fields.CustomField
import com.atlassian.jira.config.SubTaskManager

... blabla (work but not important for my question)

(result: sum = 100 in  customfield_10747 (scripted field))

def champMEA = customFieldManager.getCustomFieldObjectByName("MEA"); (works)
(In my form take the field numeric box MEA)

champMEA = ComponentAccessor.getCustomField("customfield_10747").getvalue()

(not working, how to update my field MEA with customfield10747 that contain 100 ???)

return sum

thank you

[Nic Brough -Adaptavist-]

Your failing line of code is not referencing the issue, so it doesn't know where to get the data from.

Try

def theValue = issue.getCustomField(champMEA).getvalue()

[tania_bernal_ssss_gouv_qc_ca]

Thank you

and also my type was not good :)

Have a good day