How To Fix L1038 - Key and data input not possible simultaneously

L1038 - Overview

• Message type: E = Error

• Message class: L1 - Message handling for WM master data

• Message number: 038

• Message text: Key and data input not possible simultaneously

What causes this issue?

Entering data in the key fields warehouse number/storage type and
storage bin as well as in other input fields at the same time is not
possible because the data of the key fields must be checked first.

How to fix this error?

First enter your data in the key fields and then make your entries in
in the input fields.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message L1038 - Key and data input not possible simultaneously ?

  The SAP error message L1038: Key and data input not possible simultaneously typically occurs in the context of inventory management or logistics when there is an attempt to enter both a key (like a material number or document number) and additional data in a single input field or screen. This can happen in various transactions, such as goods movements, inventory counts, or other logistics-related activities.
  
  Cause:
  The error is generally caused by:
  
  Input Field Restrictions: The system is designed to accept either a key input (like a material number) or additional data (like quantity or location) but not both at the same time. This is a design choice to prevent ambiguity in data entry.
  User Error: The user may have inadvertently entered data in multiple fields that are not meant to be used together.
  
  Configuration Issues: There may be specific configurations in the SAP system that enforce this restriction based on business processes.
  
  
  Solution:
  To resolve the