- Upload in small batches to test
- Make sure that the information you are uploading knows what records append
For recurring billing you want to make sure the following fields are populated.
- Payment Status = Recurring
- Payment Start Date
- Payment Frequency
For additional Migration help, here is an Open Source Data Migration tool provided by an outside source that can be helpful if you know JSON. Keep in mind Chargent doesn't support this migration tool since it's not a part of Chargent's products.