QB Issue Resolution:
You cannot add an additional Payment Option within Point of Sale.
You can go to the Company Preferences (File > Preferences > Company), select Receipt Tendering, select Discover as a card type you accept and Save. JCB and Diner’s Club card types have been removed from Point of Sale preferences.
An alternative would be to use the Payment Option “Check” for Paypal payments. Within the check number area, you can make a notation of something like “PP xxxxxx” and even assign the Check Payment Type to be mapped directly to the bank account of your choosing by going to the Company Preferences again (see steps above), select Accounts, click the Advanced tab and change the account for check to the PayPal Bank Account.
Resolution for Issue 'How do I add a Credit Card payment type to my POS?' available: Yes (Solved).
Source: Intuit Community forum.
How do I add a Credit Card payment type to my POS?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Payment
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Error Recovery for Payment [Canada]
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