How To Fix CO149 - Bulk material and backflushing are mutually exclusive

SAP Error Message - Details

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 149

• Message text: Bulk material and backflushing are mutually exclusive

What causes this issue?

<GL:bulk_material>Bulk material</> is stored at the work center,
which means that it cannot be issued from stock.

How to fix this error?

Set either the 'bulk material' indicator or the 'backflushing
indicator'.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CO149 - Bulk material and backflushing are mutually exclusive ?

  The SAP error message CO149, which states "Bulk material and backflushing are mutually exclusive," typically occurs in the context of production orders and material management. This error arises when there is an attempt to use backflushing for a material that is defined as a bulk material in the system.
  Cause:
  
  Material Type Configuration: The material in question is configured as a bulk material in the material master. Bulk materials are typically handled differently in SAP, and backflushing is not allowed for them.
  Production Order Settings: The production order may be set up to use backflushing, but the material being used is classified as bulk, leading to a conflict.
  Process Type: The process type defined for the production order may not support backflushing for bulk materials.
  
  Solution:
  
  Change Material Type: If backflushing is necessary for the material, consider changing the material type in the material master to a type that supports backflushing. This may involve reclassifying the material, which should be done with caution and in accordance with business processes.
  Adjust Production Order Settings: Review the production order settings and ensure that backflushing is not enabled for orders that include bulk materials. You may need to manually issue the bulk material instead of relying on backflushing.
  Use Alternative Methods: If backflushing is not suitable for bulk materials, consider using alternative inventory management methods, such as manual goods movements or direct consumption.
  Consult Documentation: Review SAP documentation or consult with your SAP support team to understand the implications of changing material types or production order settings.
  
  Related Information:
  
  Material Master Configuration: Check the material master record for the bulk material to understand its settings and classifications.
  Production Order Types: Different production order types may have different settings regarding backflushing and material handling.
  SAP Notes: Look for relevant SAP Notes that may provide additional insights or updates regarding this error message.
  User Exits and BAdIs: If custom logic is implemented in your SAP system, check for any user exits or BAdIs that may affect how materials are processed in production.
  
  By addressing the configuration and settings related to the material and production order, you should be able to resolve the CO149 error and proceed with your production activities.