RE: Partial Payment for an outstanding Invoice
MaryAnn,
Elaine's instructions are correct. What is hard to tell is exactly what you tried relative to her instructions. Perhaps a small explanation on how Dynamics SL works will help.
Each document added to the system must be uniquely identified. For AR documents, that means the combination of the customer ID, document type and reference number must be unique. So, if you received 2 separate payments from a customer then they must have separate reference numbers. For payments, the most common reference number scheme is to use the check number or EFT number for the payment. When you get a message that something already exists then it means that combination of customer ID, document type and reference number already exists in the system. That could be because you did not use a unique reference number or that you already entered that document in another batch that you had not yet released.
The other thought is that you entered the second payment using a unique combination but did not apply that payment to the invoice with the outstanding balance and now you are going back attempting to apply that second payment in a new payment application batch and you are entering as if it is a new payment instead of pulling up the prior entered second payment. When you want to apply a payment that was entered in another batch but not fully applied, you start a new payment application batch for $0.00 (since you are not introducing any new cash), select the customer, select the document type as payment and use F3 on the Number field to find and select that payment. You can then apply that payment to the invoice.
Not sure this helps but hope so.