How To Fix /SAPAPO/OM426 - ATP time series inactive

/SAPAPO/OM426 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OM -

• Message number: 426

• Message text: ATP time series inactive

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.

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/SAPAPO/OM426 - Details

• The SAP error message /SAPAPO/OM426 ATP time series inactive typically occurs in the context of Advanced Planning and Optimization (APO) within SAP systems. This error indicates that the Available-to-Promise (ATP) time series for a specific product or location is inactive, which means that the system cannot perform ATP checks for that product/location combination.
  
  Cause:
  
  Inactive Time Series: The ATP time series for the product/location is not activated. This can happen if the product has not been set up correctly in the APO system or if the time series was deactivated intentionally or unintentionally.
  Master Data Issues: There may be issues with the master data setup for the product, such as missing or incorrect configuration in the product master or location master.
  Planning Area Configuration: The planning area may not be configured correctly to include the necessary time series for ATP checks.
  Data Transfer Issues: If data is being transferred from another system (like SAP ERP),