How To Fix WS143 - _________________________________________________________________________

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 143

• Message text: _________________________________________________________________________

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS143 - _________________________________________________________________________ ?

  The SAP error message WS143 typically appears in the context of Work Scheduling (WS) or Work Center Scheduling within SAP Production Planning (PP) or Plant Maintenance (PM) modules.
  
  Error Message WS143
  Message Text:
  
  WS143 - Work center scheduling: No valid capacity available
  
  Cause
  This error occurs when the system tries to schedule operations at a work center but finds no valid capacity available for the required time period. This can happen due to:
  
  The work center has no capacity defined for the relevant time period.
  The capacity is defined but is set to zero or insufficient.
  The capacity is locked or marked as unavailable.
  The scheduling period is outside the defined capacity periods.
  Incorrect or missing capacity category or capacity header data.
  The work center is inactive or not properly maintained.
  
  
  Solution
  To resolve the WS143 error, you should:
  
  
  Check Work Center Capacity:
  
  Go to transaction CR03 (Display Work Center) or CR02 (Change Work Center).
  Verify the capacity data under the Capacities tab.
  Ensure that capacity is defined for the relevant time period.
  Check that the capacity values are greater than zero.
  
  
  
  Check Capacity Header and Capacity Category:
  
  Verify that the capacity header and capacity category are correctly maintained.
  Ensure that the capacity category is active and valid.
  
  
  
  Check Validity Periods:
  
  Confirm that the scheduling date falls within the validity period of the capacity.
  
  
  
  Check Capacity Locking:
  
  Ensure that the capacity is not locked or blocked for scheduling.
  
  
  
  Adjust Capacity if Needed:
  
  If capacity is insufficient, increase the available capacity or adjust the scheduling parameters.
  
  
  
  Check Work Center Status:
  
  Make sure the work center is active and not marked as deleted or inactive.
  
  
  
  Re-run Scheduling:
  
  After correcting capacity data, re-run the scheduling process.
  
  
  
  
  Related Information
  
  
  Transactions:
  
  CR01 - Create Work Center
  CR02 - Change Work Center
  CR03 - Display Work Center
  CM01 - Capacity Planning
  CM21 - Capacity Leveling
  
  
  
  SAP Notes:
  
  Check SAP Notes related to capacity planning and work center scheduling for any known issues or patches.
  
  
  
  Documentation:
  
  SAP Help Portal: Work Center and Capacity Planning documentation.
  SAP PP/PM configuration guides.
  
  
  
  
  If you provide more context (e.g., module, transaction, or process where the error occurs), I can give a more tailored explanation.