How To Fix GLE_ECS_MSG_S021 - First-level check: Amount '&1' is not valid (item number '&2')

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 021

• Message text: First-level check: Amount '&1' is not valid (item number '&2')

What causes this issue?

The amount specified contains letters and numbers, and cannot be
processed.
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.

System Response

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

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_S021 - First-level check: Amount '&1' is not valid (item number '&2') ?

  The SAP error message GLE_ECS_MSG_S021 indicates that there is an issue with the amount specified in a financial document or transaction. The message states that the amount '&1' is not valid for the item number '&2'. This typically occurs in the context of financial accounting or controlling modules within SAP.
  
  Cause:
  
  
  Invalid Amount: The amount entered may not meet the required criteria for the specific item. This could be due to:
  
  The amount being negative when only positive values are allowed.
  The amount exceeding predefined limits or thresholds.
  The amount not matching the expected currency or format.
  
  
  
  
  Configuration Issues: There may be configuration settings in the financial module that restrict certain amounts for specific item types.
  
  
  Data Entry Errors: There could be a simple typographical error in the amount or item number.
  
  
  Posting Period Issues: The posting period may be closed, preventing any new entries or adjustments.
  
  
  Currency Conversion Issues: If the transaction involves multiple currencies, there may be