How To Fix GLE_ECS_MSG_S026 - First-level check: Enter a valid posting key (item number &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: GLE_ECS_MSG_S - Predefined Messages in Error Correction System

• Message number: 026

• Message text: First-level check: Enter a valid posting key (item number &1)

What causes this issue?

The posting key is not correct.
The system cannot balance or split the document.
Note:
You can post documents only if their debits and credits together sum to
zero.
You cannot post documents that have more than 990 line items.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GLE_ECS_MSG_S026 - First-level check: Enter a valid posting key (item number &1) ?

  The SAP error message GLE_ECS_MSG_S026 with the description "First-level check: Enter a valid posting key (item number &1)" typically occurs when a user attempts to enter a transaction in SAP that requires a valid posting key, but the key provided is either invalid or not recognized by the system.
  Cause:
  
  Invalid Posting Key: The posting key entered does not exist in the system or is not valid for the type of transaction being processed.
  Configuration Issues: The posting keys may not be properly configured in the system for the specific transaction or document type.
  User Input Error: The user may have mistyped the posting key or entered it in the wrong format.
  Transaction Context: The posting key may not be applicable in the context of the transaction being executed (e.g., trying to use a key meant for a different type of document).
  
  Solution:
  
  Check Posting Key: Verify that the posting key entered is correct. You can do this by checking the list of valid posting keys in the SAP system.
  Consult Documentation: Refer to the SAP documentation or help files to understand which posting keys are valid for the specific transaction you are trying to execute.
  Configuration Review: If you have access, review the configuration settings for posting keys in the SAP system. This may require assistance from a system administrator or someone with configuration rights.
  User Training: Ensure that users are trained on the correct posting keys to use for different transactions to minimize input errors.
  Error Message Details: Pay attention to the item number (&1) provided in the error message, as it may give additional context about which specific entry is causing the issue.
  
  Related Information:
  
  Posting Keys: Posting keys are two-digit codes that determine the type of transaction being processed (e.g., debit or credit) and the account types that can be posted to.
  Transaction Codes: Different transaction codes in SAP may have specific posting keys associated with them. Ensure you are using the correct transaction code for your intended action.
  SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  By following these steps, you should be able to resolve the error and successfully complete your transaction in SAP.