customer_trx_id = -1 in ar_payment_schedules_all

Summary:

What's the purpose of these entries, why are these entries created?

It looks like it was created by SEED_DATA_FROM_APPLICATION and has trx_number 'Prepayment','Refund' (it seems to be some activties)

Content (please ensure you mask any confidential information):

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

24B

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