How To Fix MM551 - Special procurement and follow-up matl not allowed, as &1 phantom assy

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 551

• Message text: Special procurement and follow-up matl not allowed, as &1 phantom assy

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM551 - Special procurement and follow-up matl not allowed, as &1 phantom assy ?

  The SAP error message MM551 ("Special procurement and follow-up material not allowed, as &1 phantom assembly") typically occurs in the context of materials management and production planning when there is an issue with the configuration of a phantom assembly in the system. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  Phantom Assembly Configuration: The error indicates that the material in question is defined as a phantom assembly, which is a special type of bill of material (BOM) that is not stocked but is used in production. Phantom assemblies are typically used to simplify the BOM structure.
  Special Procurement Type: The material may have a special procurement type assigned that is not compatible with the use of phantom assemblies. This could include settings for special procurement like subcontracting, stock transfer, or other procurement types that do not allow for phantom assemblies.
  Follow-up Material: The error may also arise if there is a follow-up material defined that is not compatible with the phantom assembly.
  
  Solutions:
  
  Check Material Master Settings: Review the material master data for the phantom assembly and ensure that the special procurement type is appropriate. You can do this by navigating to the material master (transaction code MM03) and checking the relevant views (e.g., Basic Data, Purchasing, MRP).
  Adjust BOM Settings: If the phantom assembly is part of a BOM, check the BOM settings to ensure that it is correctly defined. You can use transaction code CS03 to view the BOM and make necessary adjustments.
  Review Special Procurement Settings: If the material is set up for special procurement, consider changing the procurement type to a standard type that allows for phantom assemblies. This can be done in the material master or in the configuration settings.
  Consult with Configuration Team: If you are unsure about the settings or how to change them, consult with your SAP configuration team or a functional consultant who specializes in materials management and production planning.
  Testing: After making changes, perform testing to ensure that the error no longer occurs and that the system behaves as expected.
  
  Related Information:
  
  Phantom Assemblies: Understand the concept of phantom assemblies in SAP, which are used to simplify BOMs and are not physically stocked.
  Special Procurement Types: Familiarize yourself with the different special procurement types available in SAP and their implications on material handling.
  SAP Documentation: Refer to SAP Help documentation for detailed information on material master data, BOMs, and procurement types.
  Transaction Codes: Useful transaction codes include:
  
  MM03: Display Material Master
  CS03: Display BOM
  MM02: Change Material Master
  CS02: Change BOM
  
  
  
  By addressing the configuration and settings related to the phantom assembly and special procurement, you should be able to resolve the MM551 error.