How To Fix ATPC026 - Checking period for missing parts not supported by advanced ATP check

SAP Error Message - Details

• Message type: E = Error

• Message class: ATPC - Messages for the new ATP Controller

• Message number: 026

• Message text: Checking period for missing parts not supported by advanced ATP check

What causes this issue?

You want the availability check to check for missing parts at goods
receipt. Therefore, you have entered a checking period in the
<LS>Checking period: GR</> field. For the checking group, however, the
advanced ATP check is active. The advanced ATP check does not support
this feature.

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?

If you want to use this feature, deactivate the advanced ATP check in
the checking group (in the
<DS:SIMG.SIMG_CFMENUOLSDOVZ2>Define Checking Groups</> Customizing
activity).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ATPC026 - Checking period for missing parts not supported by advanced ATP check ?

  The SAP error message ATPC026 indicates that the advanced Available-to-Promise (ATP) check is unable to process the checking period for missing parts. This typically occurs in scenarios where the system is trying to determine the availability of components or materials that are not supported by the advanced ATP functionality.
  
  Cause:
  
  
  Configuration Issues: The advanced ATP check may not be properly configured for the materials or components in question.
  Material Master Settings: The material master data may not have the necessary settings for advanced ATP, such as the ATP check type or the relevant planning strategy.
  Missing Parts: The system is trying to check availability for parts that are not defined in the advanced ATP configuration.
  Check Period Settings: The checking period for the missing parts may not be defined or supported in the advanced ATP settings.
  
  
  Solution:
  
  
  Review Configuration: Check the configuration of the advanced ATP in the SAP system. Ensure that the relevant settings for the