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

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.