Navigate to "CRM".
Then, click "Companies".
Search for the company by typing in the company name or company code.
Click on the more details icon.
Click "Custom Fields" tab.
On the "Add a row" fields, fill in "percentageCreditCardFee" or "dollarCreditCardFee" under the Code column. It is important that you follow the code format.
Fill in the name field with "Percentage Credit Card Fee" or "Dollar Credit Card Fee".
You can type in the description as "Percentage convenience fee for credit card payment" or "Dollar convenience fee for credit card payment".
Enter "PAYMENT" under the "Type" column.
For the Value Type, select "mediumValue" from the options.
Type in the fee - percentage amount or dollar amount that needs to be charged, then press "Enter" on your keyboard to add the setting.
Once configured, the percentage or the dollar amount will be displayed when making a payment. This setting overrides the global setting for this company.