How To Fix 1M021 - No transaction type /medium could be determined for posting category &1

SAP Error Message - Details

• Message type: E = Error

• Message class: 1M - BKK: Abschluß

• Message number: 021

• Message text: No transaction type /medium could be determined for posting category &1

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 1M021 - No transaction type /medium could be determined for posting category &1 ?

  The SAP error message 1M021 indicates that the system is unable to determine a transaction type or medium for a specific posting category. This typically occurs in the context of financial postings, where the system needs to know how to process a particular transaction based on its category.
  Cause:
  The error can arise due to several reasons:
  
  Missing Configuration: The transaction type or medium for the specified posting category has not been configured in the system.
  Incorrect Posting Category: The posting category being used may not be valid or recognized by the system.
  Master Data Issues: The master data related to the transaction may be incomplete or incorrectly set up.
  Authorization Issues: The user may not have the necessary authorizations to perform the transaction.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the configuration settings for the relevant module (e.g., Financial Accounting, Controlling).
  Verify that the transaction types and mediums are correctly defined for the posting category in question.
  Use transaction codes like OBYC (for automatic postings) to check the configuration.
  
  
  
  Review Posting Category:
  
  Ensure that the posting category being used is valid and correctly set up in the system.
  Check if the posting category is linked to the appropriate transaction types.
  
  
  
  Examine Master Data:
  
  Review the master data related to the transaction (e.g., vendor, customer, GL accounts) to ensure that all necessary fields are filled out correctly.
  Make sure that the relevant accounts are active and properly configured.
  
  
  
  Check User Authorizations:
  
  Ensure that the user attempting the transaction has the necessary authorizations to perform the posting.
  Review the user roles and profiles to confirm that they include the required permissions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on the posting category and transaction types relevant to your business processes.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test transaction to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBYC (Automatic Postings), FS00 (G/L Account Master), and FBL1N (Vendor Line Item Display) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the error message 1M021 in SAP.