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How To Fix WSTI028 - Warning: unprocessed PDC inbounds exist.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WSTI - Messages about Store Workbench, Physical Inventory

  • Message number: 028

  • Message text: Warning: unprocessed PDC inbounds exist.

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  • Self-Explanatory Message

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Smart SAP Assistant

  • What is the cause and solution for SAP error message WSTI028 - Warning: unprocessed PDC inbounds exist. ?

    SAP Error Message:
    WSTI028 Warning: unprocessed PDC inbounds exist.


    Cause:

    This warning message appears in SAP when there are inbound PDC (Process Data Collection) records that have not yet been processed. PDC data typically comes from shop floor data collection systems and is used to record confirmations, time data, or other production-related information.

    The message indicates that there are inbound PDC records waiting in the system that have not been transferred or posted to the production orders or relevant master data. This can happen due to:

    • Communication issues between the PDC system and SAP.
    • Errors or inconsistencies in the inbound data.
    • The inbound queue or interface not being processed.
    • Missing or incorrect configuration in the PDC interface.
    • System performance issues delaying processing.

    Solution:

    To resolve the warning WSTI028, follow these steps:

    1. Check the Inbound Queue:

      • Use transaction WE02 or WE05 to check the inbound IDocs related to PDC.
      • Identify if there are any errors or stuck IDocs that need to be reprocessed.
    2. Process or Reprocess Inbound Data:

      • Use transaction CATS_IN or the relevant PDC processing transaction to process the inbound data.
      • If IDocs are in error status, reprocess them via BD87.
    3. Check PDC Interface Configuration:

      • Verify the configuration in transactions like CATS, PDC, or related customizing to ensure the interface is correctly set up.
      • Check partner profiles (transaction WE20) and port definitions (transaction WE21) for inbound processing.
    4. Monitor Background Jobs:

      • Ensure that the background jobs responsible for processing inbound PDC data are running correctly.
      • Check SM37 for jobs related to PDC or IDoc processing.
    5. Analyze and Correct Data Issues:

      • If the inbound data contains errors, correct the source data or mapping.
      • Validate master data consistency (e.g., production orders, work centers).
    6. Clear or Archive Processed Data:

      • After processing, clear or archive old PDC data to avoid clutter and improve performance.

    Related Information:

    • PDC (Process Data Collection): A system used to collect and transfer production data from the shop floor to SAP.
    • IDocs: Intermediate documents used for asynchronous data transfer in SAP.
    • Transactions:
      • WE02 / WE05 — Display IDocs
      • BD87 — Reprocess IDocs
      • SM37 — Job monitoring
      • CATS_IN — CATS (Cross-Application Time Sheet) inbound processing
    • Notes and Documentation:
      • SAP Notes related to PDC inbound processing errors.
      • Check SAP Help Portal for PDC integration and troubleshooting guides.

    Summary:

    The warning WSTI028 indicates that there are unprocessed inbound PDC records in the system. To fix this, check and process the inbound data, ensure the interface configuration is correct, monitor related background jobs, and resolve any data errors. Proper handling of these inbound records ensures accurate and timely production data updates in SAP.

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