How To Fix MEPO816 - Not possible to select all items

MEPO816 - Overview

• Message type: E = Error

• Message class: MEPO - New Purchase Order Dialog

• Message number: 816

• Message text: Not possible to select all items

What causes this issue?

Not all items of the document satisfy the preconditions for processing
with this application due to one of the following reasons:
You do not have the necessary authorization for plant, purchasing
organization, purchasing group, and document type
The item is not in an appropriate processing state (e.g. "in release")

System Response

Only those items of the document that you can process with your
authorizations and which are in the appropriate processing state are
displayed. Thus, in the release process, only items with the processing
state <ZK>"in release"</> are displayed.

How to fix this error?

Release the items that are displayed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MEPO816 - Not possible to select all items ?

  The SAP error message MEPO816 ("Not possible to select all items") typically occurs in the context of the Purchase Order (PO) or Purchase Requisition (PR) processing, particularly when trying to select multiple items for processing in transaction codes like ME21N, ME22N, or ME23N.
  
  Cause:
  The error can be triggered by several factors, including:
  
  
  Item Status: Some items may be in a status that does not allow them to be selected. For example, items that are already processed, deleted, or blocked may not be selectable.
  
  
  Selection Criteria: The selection criteria you are using may not match the items you are trying to select. This can happen if filters are applied that exclude certain items.
  
  
  Document Type Restrictions: Certain document types may have restrictions on the selection of items based on their configuration in the system.
  
  
  Authorization Issues: The user may not have the necessary authorizations to select or process certain items.
  
  
  Data Integrity Issues: There may be inconsistencies