Message type: E = Error
Message class:  /SAPAPO/PDRP -  
Message number: 179
Message text: Frz. hor. refurb/Kts loc.prod. &1 &2 acc. to purch.doc.no. &3 EBELP &4
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The SAP error message /SAPAPO/PDRP179 typically relates to issues in the Advanced Planning and Optimization (APO) module, specifically concerning the planning of production or procurement processes. The message indicates that there is a problem with the frozen horizon for refurbishment or location production based on a purchase document.
Cause: The error message can be triggered by several factors, including: Frozen Horizon: The frozen horizon is a time period during which changes to the planning are not allowed. If you are trying to make changes to production or procurement plans that fall within this frozen horizon, you will encounter this error. Refurbishment Process: If you are trying to plan for refurbishment activities that are not allowed due to the frozen horizon settings, this can lead to the error. Purchase Document Issues: The error may also arise if there are inconsistencies or issues with the purchase document (EBELN) or line item (EBELP) referenced in the error message. Location
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