How To Fix AP326 - Old/new inv. prog.: different program type

AP326 - Overview

• Message type: E = Error

• Message class: AP - Investment program messages

• Message number: 326

• Message text: Old/new inv. prog.: different program type

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message AP326 - Old/new inv. prog.: different program type ?

  The SAP error message AP326 ("Old/new inv. prog.: different program type") typically occurs in the context of invoice processing, particularly when there is a mismatch between the program types of the old and new invoice programs. This can happen during the invoice verification process or when trying to change an invoice that has already been posted.
  
  Cause:
  The error is generally caused by one of the following reasons:
  
  Different Program Types: The old invoice and the new invoice are associated with different program types. For example, one might be a standard invoice while the other is a credit memo or a different type of document.
  
  Configuration Issues: There may be configuration settings in the SAP system that are not aligned, leading to discrepancies in how invoices are processed.
  Data Inconsistencies: There could be inconsistencies in the data related to the invoice programs, such as differences in the document types or the way they are set