Use the contextual (F1) help from the EFT Print Advices screen. You need to make sure the Delivery Method is set to Vendor/Customer, and that the vendor has the appropriate delivery method setup and a valid email address associated with it. Then choose a Message ID. (You may have to set one up - if this is your first time using this function.)

From the help file (below). I've made the important parts italic and bold:

EFT Print Advices

This report is used to create Remittance Advices (for AP payment batches) , direct debit advice (for AR receipt batches) or Remittance Advices for customer refunds (for AR refund batches). The advices can be printed (if you select Delivery method = Print destination) or emailed (if you select delivery method vendor / customer).

You can print and reprint Remittance Advices for the individual customers and vendors based on a batch range selection.

Orchid EFT Module comes with a sample remittance advice for both Accounts Receivable and Accounts Payable, formatted for laser printers. You can use the sample form or change it to suit your company's requirements, as described in the appendix on customizing forms in the System Manager User Guide.

To print Remittance Advices

1. Choose the Print Remittance Advices icon from the EFT Reports folder.

2. Select the following options:

Delivery Method - Select how you want to send the Remittance Advices to your customers and/or vendors, as follows:

• Print Destination — to send the Remittance Advices to the default print destination you selected on the company desktop.

• Customer/Vendor—  to send the Remittance Advices via the method specified in your AR Customer records or AP Vendor records.

Print - Select which type of batch you want to send Remittance Advices for as follows:

• A/P Payment batch  — to send the Remittance Advices based on a range of A/P Payment batches.

ELPAY01 – payment date is based on the date when the EFT file created/generated.

ELPAY02 – payment date  is based on Batch Date.

ELPAY03 – payment date is based on Entry Date.

• A/R Receipt batch  — to send the Remittance Advices based on a range of A/R Receipt batches.

• A/R Refund batch  — to send the Remittance Advices based on a range of A/R Refund batches.

Use Report. Select the name of the statement form to use. Choose Browse (click the Browse button or press the Alt and B keys together) if you are not sure of the name of the form, then select the form from the list that appears.

Message ID. This field appears when you select Customer/Vendor for the Delivery Method. Select the code for the e-mail message you want to send with these statements.

To set up messages for AP remittance advice, AR Direct Debit Advice or AR Refund Advice, refer to EFT Setup - Messages.  

Remit-To Address/Details. This field appears when you select Customer/Vendor for the Delivery Method and you have selected A/P Payment batch from the Print option.  Select this option if you want to use the Remittance address / e-mail addresses on the remittance advice.  If there is no remittance code on an indivudial payment, the vendor address / e-mail details will be used.

From Batch .. to Batch. Select the batch range you wish to print/deliver.  If you select more than one batch, you cannot select an individual entry within the batches, all entries will be printed/delivered.

From Entry … to Entry. If you select only one batch, you can select an entry range within the batch.  Only the selected entries will be printed/delivered

3. Click Print.

Thank you for the detailed response.  This seems so much more complicated then I expected.  I just want to email remittances to my EFT vendors right after I pay them. I do this manually now, and I'd like to save a bit of time. 

Your business partner can help you with the setup.

ok thank you! I was trying to do it on our own :)