Hi Kate,
1) If you post an invoice in Receivables and a Payment was applied to the invoice, both the invoice and payment are posted. No cash batch is created in AR.
2) No cash posting in AR is transferred to BankRec, either when posting Cash batches or Invoices with applied payments. If you want the cash to update BankRec, the batch should be entered and posted in BankRec. After posting, a cash batch is created in AR.
3) In AR, the bank GL account is defined on the Control Account Set associated with the customer. When integrated with BankRec, typically this GL account will be a Clearing account. The actual bank GL account will be defined in BankRec, as will the Clearing account be. If AR is integrated with BankRec and accounting set up as above, posting cash in AR will update the clearing account but not the real bank. In order to update the bank directly by posting cash in AR, the Control Account on the customer needs to have the bank GL account defined. As you would guess, a customer would have to have all cash posted either in BankRec or AR, not both, for the GL accounting to be correct.
When using BankRec, you should do all your deposits there.
_________________________
Regards,
Softrak Tech Support