How To Fix NI008 - Purch. doc. type & (doc. cat. &) not allowed (Please check your input)

NI008 - Overview

• Message type: E = Error

• Message class: NI - Document index processing

• Message number: 008

• Message text: Purch. doc. type & (doc. cat. &) not allowed (Please check your input)

What causes this issue?

Purchasing document type &V1& belongs to category &V2& (&V3&). However,
the function you requested can only be performed for document types of
category

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

'F' - Purchase order, and
'L' - Scheduling agreement

System Response

The function is not possible for document category &V2& (&V3&).
Documents belonging to document type &V1& of category &V2& (&V3&) will
therefore be neither selected nor processed.

How to fix this error?

Please check your input. Use the F4 help to view the permissible
values.
If you perform the function anyway, the documents belonging to document
type &V1&, category &V2& (&V3&) will neither be selected nor processed.
If - in contrast to the standard system - document type &V1& is also
allowed for category "F" (purchase order) or "L" (scheduling agreement)
in your system, the relevant documents will, of course, be processed.

Error message extract from SAP system. Copyright SAP SE.

NI008 - Details

• The SAP error message NI008 indicates that there is an issue with the purchase document type and document category you are trying to use in your transaction. This error typically occurs when the combination of the purchase document type and document category is not allowed or is not configured correctly in the system.
  
  Cause:
  
  Incorrect Document Type: The purchase document type you are trying to use may not be valid for the specific document category you are working with.
  
  Configuration Issues: The configuration settings in the SAP system may not allow the combination of the specified purchase document type and document category.
  Missing Authorizations: The user may not have the necessary authorizations to create or process the specified document type.
  Customizations: If there are customizations in the system, they may restrict the use of certain document types with specific categories.
  
  
  Solution:
  
  Check Document Type and Category: Verify that the purchase document type and document category you are