Follow the below process for each supplier where you would like to collect electronic credits.

Note
You require a PharmX account to be active before you can collect credits electronically; refer to Create accounts for PharmX suppliers to create a PharmX account for a supplier.
This feature may not be available for all suppliers.

From Stock Manager:

1. Click the Maintenance menu and select 2. Suppliers.

The Supplier Maintenance window is displayed.2. Click Find.

The Search window is displayed.

3. Type in the name of the Supplier e.g. Symbion.

4. Highlight the correct supplier entry and click Change.The Supplier Editing window is displayed. 5. Select the Communications tab.

6. Check the Import Tab Credits checkbox.7. Click OK to save.

Repeat for all required suppliers.

Note
The first time you collect invoices after adjust this setting; it may collect historical credits that have already been manually completed. 
Delete any electronically collected invoices that have already been completed.