How To Fix /ISDFPS/SAB028 - Site &1 is not part of the site selection, no assignment possible

/ISDFPS/SAB028 - Overview

• Message type: E = Error

• Message class: /ISDFPS/SAB -

• Message number: 028

• Message text: Site &1 is not part of the site selection, no assignment possible

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/SAB028 - Site &1 is not part of the site selection, no assignment possible ?

  The SAP error message /ISDFPS/SAB028 Site &1 is not part of the site selection, no assignment possible typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where site selection is crucial for planning and execution processes. This error indicates that the site you are trying to work with is not included in the current site selection criteria, which prevents any assignments or operations from being performed for that site.
  
  Cause:
  
  Site Not Included in Selection: The site you are trying to use is not part of the defined site selection in the relevant planning or execution process.
  
  Configuration Issues: There may be configuration settings that exclude the site from being considered in the planning run or transaction.
  Master Data Issues: The site may not be properly set up in the master data, or it may not be assigned to the relevant planning area or product.
  Authorization Issues: The user