How To Fix PPH_DD129 - Horizon in past for Product &1 Plant &2 MRP Area &3 cannot be negative

PPH_DD129 - Overview

• Message type: E = Error

• Message class: PPH_DD - Messages for Demand Driven

• Message number: 129

• Message text: Horizon in past for Product &1 Plant &2 MRP Area &3 cannot be negative

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPH_DD129 - Horizon in past for Product &1 Plant &2 MRP Area &3 cannot be negative ?

  The SAP error message PPH_DD129 indicates that there is an issue with the planning horizon for a specific product in a given plant and MRP area. The error message states that the planning horizon cannot be negative, which typically means that the system is trying to process a planning period that is set in the past.
  
  Cause:
  
  Negative Planning Horizon: The planning horizon for the product in the specified plant and MRP area is set to a date that is earlier than the current date.
  
  Configuration Issues: There may be incorrect settings in the MRP (Material Requirements Planning) configuration for the product or plant.
  Data Entry Errors: Incorrect data entry during the setup of the product or MRP area could lead to this error.
  Master Data Issues: The master data for the product, plant, or MRP area may not be correctly maintained, leading to inconsistencies.
  
  
  Solution:
  
  
  Check Planning Horizon Settings:
  
  Go to the MRP area settings for the