How To Fix PV391 - It is not possible to firmly book or cancel a session

PV391 - Overview

• Message type: E = Error

• Message class: PV - Training and Event Management

• Message number: 391

• Message text: It is not possible to firmly book or cancel a session

What causes this issue?

Sessions are single events in a main event. They are automatically
included when the main event is firmly booked or canceled.

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

Error message extract from SAP system. Copyright SAP SE.

PV391 - Details

• The SAP error message PV391, which states "It is not possible to firmly book or cancel a session," typically occurs in the context of SAP's Event Management or Training Management modules. This error indicates that there is an issue with the booking status of a session, preventing users from making changes to it.
  Causes:
  
  Session Status: The session may be in a status that does not allow for firm bookings or cancellations. For example, if the session is already completed or closed, changes may not be permitted.
  User Authorizations: The user may not have the necessary authorizations to perform the booking or cancellation action.
  Configuration Settings: There may be specific configuration settings in the system that restrict changes to session bookings based on certain criteria (e.g., time limits, participant limits).
  Data Integrity Issues: There could be underlying data integrity issues, such as missing or incorrect entries in related tables.
  
  Solutions:
  
  Check Session Status: Verify the current status