REST API and Import Mgt for Link Financial Customer

Summary:

For the Link Financial Customer feature in Redwood Account UI, what are the REST API and Import Mgt we can use to convert the data in batch instead of adding them one by one from UI?

Content (please ensure you mask any confidential information):
as above

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

26A

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