Copy custom field values to another custom field

[Madhuri Latha Bhumireddy]

I want to copy of custom field values to another custom fields ,as there are duplicate custom fields i need to clean up 

custom field name is External issue ID nearly 22 are there only few of them is having more issues rest of them are few.

while using built in scripts in jira cloud i used copy of custom field value to another field

the following is the screen shot i attached 

[JM Perrot]

Hello @Madhuri Latha Bhumireddy 

I can propose another way, did try to do it by Automation rule ?

Regards,

JM

[Madhuri Latha BhumiReddy]

I tried but its not working, hope you understand my problem

am having 22 external issue id custom fields with same name having different issues in each field i want to clean up and keep the issues in single field.

Thanks,

Madhuri

[JM Perrot]

It's not working or it's not the expected result ? What kind of field do you use ? Are they the same type ?

These fields are all display on each issue or do you have only one field among these 22 display by issue ?

Regards,

JM