OCC How to add existing contacts to new subaccounts automatically?

Summary:

• We would like to add the existing contacts to the newly created sub-accounts automatically.

• 

Currently we have to do the process manually.

• Please provide guidance or implement a solution to automate the process of associating existing contacts with newly created sub-accounts.

Content (please ensure you mask any confidential information):

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

24.08.02

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