How To Fix /SAPSLL/PLUGINR3320 - Billing document type must be an invoice or debit memo

/SAPSLL/PLUGINR3320 - Overview

• Message type: E = Error

• Message class: /SAPSLL/PLUGINR3 -

• Message number: 320

• Message text: Billing document type must be an invoice or debit memo

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPSLL/PLUGINR3320 - Billing document type must be an invoice or debit memo ?

  The SAP error message /SAPSLL/PLUGINR3320 indicates that there is an issue with the billing document type being processed in the SAP system. Specifically, the error states that the billing document type must be either an invoice or a debit memo. This error typically arises in the context of SAP Logistics and Sales and Distribution (SD) modules, particularly when dealing with billing documents in the SAP Global Trade Services (GTS) or SAP S/4HANA environments.
  
  Cause:
  
  Incorrect Document Type: The billing document being processed is of a type that is not recognized as valid for the operation being performed. For example, it could be a credit memo, pro forma invoice, or another type that is not classified as an invoice or debit memo.
  
  Configuration Issues: The system may not be configured correctly to recognize certain document types as valid for the transaction.
  Data Entry Errors: There may be a mistake in the data entry where an