A one time customer can be created using the standard account group that exists for a 'One Time Customer' in SAP .
One time Customer Account group will be having its own mandatory fields such as Addresses and bank details that are required for a single transaction.
The following is the steps:
SPRO-->Financial Accounting
-->Accounts Receivables and Accounts Payables
-->Customer Accounts-->Master Data
-->Preparations for creating Customer Master Data
-->Click Define Account Groups with Screen Layout
-->Click New Entries -->Check the field One time Account
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