How To Fix /SAPAPO/PINV020 - Planning type must either be constant or not constant - not %1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PINV -

• Message number: 020

• Message text: Planning type must either be constant or not constant - not %1

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 /SAPAPO/PINV020 - Planning type must either be constant or not constant - not %1 ?

  The SAP error message /SAPAPO/PINV020 indicates an issue with the planning type configuration in the Advanced Planning and Optimization (APO) module. This error typically arises when the planning type is not set correctly in the context of the planning process you are trying to execute.
  
  Cause:
  The error message states that the planning type must either be constant or not constant, but it is currently set to an invalid value (%1). This can occur due to several reasons:
  
  Incorrect Configuration: The planning type may not be configured correctly in the system.
  Data Inconsistency: There may be inconsistencies in the master data or planning data that lead to this error.
  Planning Area Settings: The settings in the planning area may not align with the requirements of the planning type being used.
  User Input Error: The user may have inadvertently selected an incorrect planning type during the planning process.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check