How to set default value to metafields : ID won't be given unless you fill the field on UI?

[Charlie-SLA]

Hi @automaticaJP ,

I was just wondering if you have worked out some way to add default values to meta field?

I am having similar issues, I need to know the meta field ID in advance of editing it, but there is no ID until it has a value, hence I want to automate and add a default value first so I can update it