How To Fix /SAPAPO/DMRES178 - Please specify the number of time units

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 178

• Message text: Please specify the number of time units

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/DMRES178 - Please specify the number of time units ?

  The SAP error message /SAPAPO/DMRES178 typically indicates that there is an issue related to the time units specified in a demand management or planning context within SAP Advanced Planning and Optimization (APO). The message usually suggests that the system requires a specific number of time units to be defined for a certain operation or process, but this has not been provided.
  Cause:
  
  Missing Time Units: The error often arises when a user attempts to execute a function or transaction that requires a specification of time units (e.g., days, hours) but has not provided this information.
  Configuration Issues: There may be configuration settings in the APO system that are not set up correctly, leading to the system not recognizing the time units.
  Data Entry Errors: Users may have entered data incorrectly or omitted necessary fields that define the time units.
  
  Solution:
  
  Specify Time Units: Review the transaction or function you are trying to execute and ensure that you have specified the required number of time units. This could involve entering a value in a specific field that indicates the duration or quantity of time.
  Check Configuration: If you are an administrator or have access to configuration settings, check the relevant settings in the APO system to ensure that time units are properly defined and that there are no discrepancies.
  Review Documentation: Consult the SAP documentation or help resources related to the specific transaction or function you are using to understand the requirements for time units.
  User Training: If this error is common among users, consider providing additional training or resources to help them understand how to properly enter time units in the system.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may be using specific transaction codes related to demand planning, supply network planning, or other APO functionalities.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  Community Forums: SAP Community and other forums can be valuable resources for finding solutions to common errors and sharing experiences with other users.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.