How To Fix GTCN_MESSAGE320 - Select at least one posting type for reversal posting

SAP Error Message - Details

• Message type: E = Error

• Message class: GTCN_MESSAGE - GTCN: Message Class

• Message number: 320

• Message text: Select at least one posting type for reversal posting

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message GTCN_MESSAGE320 - Select at least one posting type for reversal posting ?

  The SAP error message GTCN_MESSAGE320, which states "Select at least one posting type for reversal posting," typically occurs when you are trying to perform a reversal posting in the SAP system but have not selected any posting types for the reversal. This can happen in various SAP modules, such as Financial Accounting (FI) or Controlling (CO), where reversal postings are common.
  Cause:
  
  No Posting Type Selected: The most common cause of this error is that the user has not selected any posting type for the reversal. In the reversal posting screen, there are usually options to select different types of reversals (e.g., full reversal, partial reversal, etc.).
  Configuration Issues: There may be configuration settings in the SAP system that restrict the available posting types or require certain conditions to be met before a posting type can be selected.
  User Authorization: The user may not have the necessary authorizations to perform certain types of reversal postings, which could lead to the inability to select a posting type.
  
  Solution:
  
  Select a Posting Type: Ensure that you select at least one posting type for the reversal. Look for a dropdown or selection box in the reversal posting screen and choose the appropriate option.
  Check Configuration: If you are unable to select a posting type, check with your SAP administrator or consultant to ensure that the configuration settings for reversal postings are correctly set up.
  Review User Authorizations: If you suspect that authorization issues may be causing the problem, check your user roles and permissions to ensure you have the necessary access to perform reversal postings.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on reversal postings in your version of SAP, as the process may vary slightly depending on the module and version.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes for reversal postings in your SAP module (e.g., FB08 for reversing accounting documents in FI).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions for specific scenarios.
  Training and Support: If you are new to SAP or the specific module you are working in, consider seeking training or support from experienced colleagues or SAP consultants.
  
  By following these steps, you should be able to resolve the GTCN_MESSAGE320 error and successfully perform the reversal posting.