It is strongly recommended that you do not integrate your current Bill.com account with a new accounting package and /or date file: When integrating Bill.com account with your Accounting System data file, Bill.com tags each list element and all transactional data with unique identifiers. This background identifier eliminates any chance of data being synced to the wrong accounting file.
Because of this security feature it is strongly recommended that you do not integrate your current Bill.com account with a new accounting package and /or date file. This cross integration will create a large number of sync errors that will be labor intensive and time consuming to fix on your part. In the event that a user chooses to change accounting packages or create a new accounting data file it is recommended that you choose to create a new Bill.com account for that company.
Here are a few suggestions to help you in preparing for the migration:
Set up a new Bill.com account. Give it a different name for easy identification
Make sure the bank account is verified in the new account so payments can be made without interruption
Do not leave any bills Unpaid in the old account
In Bill.com. deactivate the bank account and all users in the old account so they do not accidentally access the incorrect account
For your old account, request your Bill.com Documents on CD ($50.00)
Cancel the old Bill.com Account once the migration is complete to avoid any duplicate charges.