How To Fix VY634 - Purchase order generation: account assignment category &1 cannot be used

VY634 - Overview

• Message type: E = Error

• Message class: VY - Messages for freight processing

• Message number: 634

• Message text: Purchase order generation: account assignment category &1 cannot be used

What causes this issue?

When generating a freight purchase order, the system found that
consumption indicator &v2& is set in account assignment category &v1&.
This is not allowed.

System Response

No freight purchase order can be generated.

How to fix this error?

The account assignment category for automatic purchase order generation
must have the value "U" (unknown) for the consumption posting indicator.
Account assignment category "U" is used as standard. This message is
invoked if the setting "U" for the account assignment category has been
changed in Customizing for inbound deliveries. SAP extension V54U0007
lets you set a different account assignment category for purchase order
generation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VY634 - Purchase order generation: account assignment category &1 cannot be used ?

  The SAP error message VY634 indicates that there is an issue with the account assignment category specified in the purchase order generation process. This error typically arises when the account assignment category used in the purchase order is not compatible with the type of purchase order being created or with the settings in the system.
  
  Cause:
  
  Incompatible Account Assignment Category: The account assignment category specified in the purchase order (e.g., 'K' for cost center, 'P' for project, etc.) may not be allowed for the type of purchase order you are trying to create.
  
  Configuration Issues: The configuration settings in the SAP system may not allow the specified account assignment category for the particular purchase order type.
  Missing Master Data: The relevant master data (like cost centers, internal orders, etc.) may not be set up correctly or may be missing.
  Document Type Restrictions: Certain document types may have restrictions on which account assignment categories can be