SAP Message WP417 - & is not a payment method on the debit side

Diagnosis
The payment method entered does not result in a bill being sent to acredit card company.

System Response
A bill will only be drawn up for the customer who purchased thegoods.

Procedure
If you do not wish any bill to be sent to a credit card company, nofurther action is required on your part.
If you wish a bill to be sent to a credit card company using thispayment method, assign the relevant customer (credit card company) tothe payment method.