Symptom
- Problems switching the configuration in storage types in EWM.
- Error message: "The field 'Level of Available Quantity' on a storage type can only be set at the moment the storage type is created. It cannot be changed afterwards." (/SCWM/LT271)
Environment
SAP S/4HANA Cloud Public Edition
Reproducing the Issue
- Open configuration for an existing EWM storage type.
- Attempt to change the field "Level of Available Quantity" (for example, from "Highest-Level HU" to "Storage Bin").
- Save the changes and observe error /SCWM/LT271.
Cause
- The field "Level of Available Quantity" is a design-time attribute that can only be set during storage type creation and cannot be changed afterwards (hard system restriction; error /SCWM/LT271).
- If the storage type is already referenced (for example, bins created, warehouse tasks or configuration references exist), deletion or recreation with the same ID is not supported.
Resolution
- Create new storage type(s) with the correct "Level of Available Quantity" setting from the start.
- Migrate all relevant configuration references to the new storage type(s), such as Warehouse Process Types, bin determination, putaway/removal rules, search sequences, and storage control.
- Phase out the old storage type(s): remove them from all search sequences and determination rules so they are not proposed by the system.
- To reduce selection by mistake, rename the old storage type description to a clear label such as "DO NOT USE" and keep it unreferenced; it does not need to be formally deleted.
- If Advanced Returns Management (ARM) scenarios are in scope, ensure the storage type uses "Level of Available Quantity = Highest-Level HU," as ARM does not support the "Storage Bin" level.
- For product enhancement requests (for example, deletion capability or ID reuse), refer to: create an Influence request per the KBA linked below.
See Also
KBA 2963059 - How to Submit Feature Requests for SAP S/4HANA Cloud Public Edition
Keywords
ewm, storage type, level of available quantity, /scwm/lt271, highest-level hu, storage bin, cannot change, change not possible, error message, public cloud, arm, advanced returns management, hide storage type, do not use, storage type search sequence, 'Level of Available Quantity' , KBA , SCM-EWM-CNT-2CL , S/4HANA Best Practices for EWM (Public Cloud) , Problem
Product
SAP S/4HANA Cloud Public Edition all versions
SAP Knowledge Base Article - Public