Display applied customer credits when printing sales orders.

Implement a workaround, that would store the sum of the amount on a custom field. Then, expose the custom field on the Advanced PDF. 

• Create a saved search to generate the sum of the customer deposit
  • Navigate to List > Search > Saved Searches > New
  • Create the Saved Search with the following settings
    • Under the Criteria Tab, add the following:
      • Type: Customer Deposit
      • Status: any of:
        Customer Deposit: Deposited
        Customer Deposit: Fully Applied
      • Main Line: True
    • Under the Results Tab:
    • Under the Available Filters
  • Hit Save.
    
• Create a custom body field that would display.
  • Navigate to Customization > Lists, Records & Fields > Transaction Body Fields > New
  • Setup the Custom Field with the following settings
    • Label: Total Custom Deposit (or your preferred name)
    • ID: _totaldeposit
    • Type: Currency
    • Store Value: is unchecked
    • Under the Applies To tab, check on Sale
    • Under Validation & Defaulting tab, on the Search Field select the Saved Search we created on the first step.
  • Hit Save.

• Expose the custom body field to the Advanced PDF Template
  • Navigate to Customization > Forms > Advanced PDF/HTML Templates 
  • Edit the advanced PDF/HTML template
  • Locate the table for the total section (it should start with the following codes below)
    <table style=”page-break-inside: avoid; width: 100%; margin-top: 10px;”>
  • Insert a new row for your custom field:
    <tr>
    <td colspan=”4″>&nbsp;</td>
    <td align=”right” style=”font-weight: bold; color: #333333;”>Deposit total</td>
    <td align=”right”>${record.custbody_totaldeposit}</td>
    </tr>
  • Hit Save