How To Fix 6P877 - Define internal number assignment for requirement class

6P877 - Overview

• Message type: E = Error

• Message class: 6P - Messages for planned independent requirements (Appl.area 60)

• Message number: 877

• Message text: Define internal number assignment for requirement class

What causes this issue?

You have not maintained number assignment for the requirement class.

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?

Choose a requirement class in the view Planned Independent Requirements:
Internal Number Assignment to maintain the number range for the
requirements plan ID.
You can call up this view using transaction <AB>OMPP</> or in the
Customizing activity <LS>Define Internal Number Assignment per Reqmts
Class</> under <LS>Production > Production Planning > Demand Management
> Planned Independent Requirements > Default Values and Presettings</>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 6P877 - Define internal number assignment for requirement class ?

  The SAP error message 6P877 ("Define internal number assignment for requirement class") typically occurs in the context of configuring the Material Requirements Planning (MRP) or Production Planning (PP) modules. This error indicates that the system is unable to find a defined internal number assignment for a specific requirement class in the configuration settings.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Configuration: The requirement class has not been properly configured in the system, specifically regarding the internal number assignment.
  Incorrect Settings: The settings for the requirement class may be incomplete or incorrect, leading to the inability of the system to generate internal numbers.
  Transport Issues: If the configuration was transported from another system, there may have been issues during the transport process that resulted in missing or incomplete settings.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Requirement Class Configuration:
  
  Go to the transaction code SPRO (SAP Project Reference Object).
  Navigate to