How to register a shared contact for different parties in bill management

Summary:

We have a requirement to register a person (contact) assigned to multiple customer parties for Bill Management.

Content (please ensure you mask any confidential information):

We have a requirement wherein a person can be a contact for different customers (different parties). We have different customer parties, each one with a single account. The ask is to be able to register a contact for bill management portal such that he/she can access bill management for all the different customer parties.

Version (include the version you are using, if applicable):

23B

Code Snippet (add any code snippets that support your topic, if applicable):