How To Fix PK030 - Only one entry allowed for supply area, resp. person, or stge location

PK030 - Overview

• Message type: E = Error

• Message class: PK - Production - KANBAN

• Message number: 030

• Message text: Only one entry allowed for supply area, resp. person, or stge location

What causes this issue?

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?

You can select Kanban data according to the three options listed
below:
For a supply area:
Here, enter only the supply area.
For a supply area of a specific responsible person:
Here, only enter the responsible period.
For all supply areas that are assigned to a certain storage location:
Here, only enter the storage location.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PK030 - Only one entry allowed for supply area, resp. person, or stge location ?

  The SAP error message PK030 ("Only one entry allowed for supply area, resp. person, or stge location") typically occurs in the context of production planning or materials management when there is an attempt to create or modify a record that violates the constraints set by the system regarding supply areas, responsible persons, or storage locations.
  
  Cause:
  
  
  Duplicate Entries: The error usually arises when there are multiple entries for a supply area, responsible person, or storage location where only one entry is allowed. This can happen if:
  
  You are trying to assign multiple supply areas to a single material or production order.
  There are conflicting entries in the configuration or master data.
  The system is set up to allow only one entry for a specific combination, and the user is attempting to create or modify it incorrectly.
  
  
  
  
  Configuration Issues: The configuration settings in the system may restrict the number of entries allowed for certain fields, leading to