[Key Contacts Management] Standardize billing account contacts and customer models for Country and State values
Problem
Currently we store Country and State as full names in the BillingAccountContact model, but with alpha3 code in the Customer model. See discussion here:
- #7414 (comment 1553640906)
- Add state_name method to contact models to cons... (#6510 - closed)
- https://docs.google.com/document/d/1_YbxNCo3KXK1-KdIZTgSvmU9kIslYjQnFZAmmu1DSqQ/edit#bookmark=id.mg0spjbpa2a4
- https://gitlab.com/gitlab-org/customers-gitlab-com/-/issues/4026+
Proposal
Standardize the two models to use aplha3 values for countries and states: https://docs.google.com/spreadsheets/d/1pdiHdWcrFrLotUCj6SiJEcSKYY_0YHUER90YJEoyJcY/edit#gid=0 and integrate with Zuora to handle the issues described in Add state_name method to contact models to cons... (#6510 - closed)
Edited by Michael Lunøe