How To Fix TU139 - Additional periodic MR schedule record is not permitted in an MR unit

TU139 - Overview

• Message type: E = Error

• Message class: TU - Billing/Scheduling/Budget Billing

• Message number: 139

• Message text: Additional periodic MR schedule record is not permitted in an MR unit

What causes this issue?

You have attempted to enter an additional periodic meter reading
schedule record for the meter reading unit. This is not permitted,
since only periodic meter reading datasets that match the corresponding
portion are allowed.

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?

Enter a different meter reading reason, or delete the entry.

Error message extract from SAP system. Copyright SAP SE.

TU139 - Details

• The SAP error message TU139, which states "Additional periodic MR schedule record is not permitted in an MR unit," typically occurs in the context of Material Requirements Planning (MRP) when there is an attempt to create or modify a scheduling record for a material that already has a periodic scheduling record defined.
  
  Cause:
  
  Existing Scheduling Record: The error is triggered when there is already a periodic scheduling record for the material in the MRP unit, and the system does not allow the creation of an additional record.
  
  Configuration Issues: There may be configuration settings in the MRP or material master that restrict the creation of multiple periodic records.
  Data Integrity: The system is designed to maintain data integrity by preventing duplicate scheduling records that could lead to confusion in planning and execution.
  
  
  Solution:
  
  Check Existing Records: Review the existing periodic scheduling records for the material in question. You can do this by navigating to the relevant