Charging Customer Credit Cards Prompts Invalid Account Reference Key XX

Problem:

Charging Customer Credit Cards Prompts Invalid Account Reference Key XX

Answer:

The system prompts this message because the Account used in the transaction is inactive. 
Here are the two solutions to solve this.

1. Activate the General Ledger Account referenced in the error. The XX reference the internal ID of the account.

- Navigate to List > Accounting > Accounts > Check the Show Inactives checkbox 
- Look for the Internal ID reference in the error
- Un-check the Inactive checkbox on the Account
- Click Submit 

Note: Navigate to Home > Set Preferences > Enable Show Internal IDs if you do not have the Internal ID column.

2. Change the Settlement Bank Account used in the Credit Card Processing setup

- Navigate to Setup > Accounting > Credit Card Processing
- Click Edit on the Credit Card Profile used
- Select an Active Account on Settlement Bank Account field
- Click Save