How To Fix /SAPAPO/PSPP_DPP020 - Some locations are blocked

/SAPAPO/PSPP_DPP020 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PSPP_DPP -

• Message number: 020

• Message text: Some locations are blocked

Self-Explanatory Message

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/SAPAPO/PSPP_DPP020 - Details

• The SAP error message /SAPAPO/PSPP_DPP020 indicates that some locations are blocked in the context of Demand Planning or Supply Network Planning within SAP Advanced Planning and Optimization (APO). This error typically arises when certain locations (e.g., plants, distribution centers) are not available for planning or execution due to various reasons.
  
  Cause:
  
  Blocked Locations: The most common cause is that the locations in question have been marked as blocked in the system. This could be due to maintenance, capacity issues, or other operational constraints.
  Master Data Issues: There may be issues with the master data configuration for the locations, such as incorrect settings or missing data.
  Planning Version: The planning version being used may not include the blocked locations, or the locations may be excluded from the planning process.
  Time Period: The error may also occur if the planning horizon does not include the time periods for which the locations are blocked.
  
  
  Solution:
  
  Check Location Status: Review the