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Please provide as much information as possible. At least, this should include a description of your issue and steps to reproduce the problem. If possible please provide a summary of what steps or workarounds you have already tried, and any docs or articles you found (un)helpful.

Problem you have encountered:
Project Name ABC is created and deleted in month of March. Usage incurred will appear in billing reports and invoices of April. The charges will appear as Project Name = XXXXX where XXXXX is a numerical value of GCP internal identifier. It is not even the project ID as you can see from Project Info of GCP. This makes it impossible or user to identify which project the charges belong to.
This has been verified with support that this is GCP current behaviour in ticket case # 45188090. No solution or workaround available

What you expected to happen:
For billing, project name should be retained in all billing related info i.e. cost explorer, reports, invoices etc. This missing info for project name is critical for finance and accounting. It should not happen at all.

Steps to reproduce:
1. Create project in current month. Project Name = "myProjectToDelete", ProjectID = "myProjectToDelete123123"
2. Incur some charges e.g. cloud storage
3. Delete project in current month
4. Check billing reports / invoices in next month. Bill will be shown as Project Name = XXXXX instead of "myProjectToDelete" or "myProjectToDelete123123"

Other information (workarounds you have tried, documentation consulted, etc):