How To Fix MW408 - Supply source determination for DC requires delivery phase

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 408

• Message text: Supply source determination for DC requires delivery phase

What causes this issue?

To determine a source of supply for a distribution center, the supply
source determination function requires a delivery phase.
Supply source determination is run with the first delivery phase date.
If you do not enter any delivery phase, supply source determination is
run with today's date.

How to fix this error?

Enter a delivery phase for supply source determination for the
distribution centers.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW408 - Supply source determination for DC requires delivery phase ?

  The SAP error message MW408 ("Supply source determination for DC requires delivery phase") typically occurs in the context of supply chain management, particularly when dealing with distribution centers (DC) and the determination of supply sources for deliveries. This error indicates that the system is unable to determine a valid supply source for a delivery because the necessary delivery phase is not set or is missing.
  Cause:
  
  Missing Delivery Phase: The delivery phase for the distribution center is not defined or is incorrectly configured in the system.
  Configuration Issues: The configuration settings for supply source determination may not be properly set up in the system.
  Master Data Issues: There may be issues with the master data related to the materials, vendors, or distribution centers that are involved in the supply chain process.
  Inconsistent Data: Inconsistencies in the data related to the delivery, such as incorrect or missing information in the material master or vendor master records.
  
  Solution:
  
  
  Check Delivery Phase Configuration:
  
  Go to the configuration settings in SAP (usually in SPRO) and ensure that the delivery phase for the distribution center is correctly defined.
  Ensure that the delivery phase is active and properly linked to the relevant supply sources.
  
  
  
  Review Supply Source Determination Settings:
  
  Check the settings for supply source determination in the system. Ensure that the rules for determining supply sources are correctly configured.
  Verify that the necessary conditions for supply source determination are met.
  
  
  
  Validate Master Data:
  
  Review the material master data to ensure that all necessary fields are filled out correctly, especially those related to the supply chain and delivery processes.
  Check the vendor master data to ensure that the vendors are correctly set up and linked to the distribution center.
  
  
  
  Check for Inconsistencies:
  
  Run consistency checks on the relevant data to identify any discrepancies that may be causing the error.
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to analyze the relevant tables for inconsistencies.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help notes related to supply source determination and delivery phases for additional guidance.
  
  
  
  Testing:
  
  After making the necessary changes, perform tests to ensure that the supply source determination works as expected without triggering the MW408 error.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create Purchase Order), ME2N (Purchase Orders by Vendor), and others that may be involved in the supply chain process.
  SAP Notes: Check SAP Notes for any known issues or patches related to the MW408 error.
  User Forums: Engage with SAP community forums or user groups for insights and solutions shared by other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the root cause of the MW408 error and implement the necessary solutions to resolve it.