How To Fix C7064 - Minimum overlap time could not be maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: C7 - Scheduling

• Message number: 064

• Message text: Minimum overlap time could not be maintained

What causes this issue?

The minimum overlap time maintained in the operation could not be kept.
As a result, the operations specified to be overlapped were not.

How to fix this error?

Check whether this occurred for economical reasons (for example, if
overlapping should occur only from a specific lot size). If this was
not intended, maintain a shorter minimum overlap time or minimum
send-ahead quantity.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C7064 - Minimum overlap time could not be maintained ?

  The SAP error message C7064 "Minimum overlap time could not be maintained" typically occurs in the context of production planning and scheduling. This error indicates that the scheduling of operations in a production order or a process order cannot be completed because the required minimum overlap time between operations is not being met.
  Cause:
  
  
  Scheduling Constraints: The error often arises when the scheduling of two or more operations does not allow for the minimum overlap time defined in the system. This can happen if:
  
  The operations are scheduled too closely together.
  The duration of the preceding operation is longer than expected.
  There are resource constraints that prevent the operations from being scheduled as required.
  
  
  
  Configuration Settings: The minimum overlap time is defined in the routing or in the production version. If this value is set too high relative to the operation times, it can lead to scheduling conflicts.
  
  
  Resource Availability: If the resources (machines, labor) required for the operations are not available at the scheduled times, it can lead to this error.
  
  
  Solution:
  
  
  Review and Adjust Scheduling:
  
  Check the operation times and ensure that they are realistic.
  Adjust the scheduling of operations to ensure that the minimum overlap time can be maintained.
  
  
  
  Modify Minimum Overlap Time:
  
  If the minimum overlap time is set too high, consider adjusting it in the routing or production version settings. This can be done in the transaction code CA01 (Create Routing) or CA02 (Change Routing).
  
  
  
  Check Resource Availability:
  
  Ensure that the resources required for the operations are available and not overbooked. You may need to adjust the capacity planning or resource allocation.
  
  
  
  Use Alternative Scheduling Techniques:
  
  If the standard scheduling does not meet your needs, consider using alternative scheduling techniques or tools available in SAP, such as the Advanced Planning and Optimization (APO) module or SAP S/4HANA's embedded PP/DS (Production Planning and Detailed Scheduling).
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific configuration settings related to your system.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  CA01, CA02 (Routing)
  CO01, CO02 (Production Orders)
  C223 (Define Minimum Overlap Time)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide patches related to this error.
  
  
  Training and Documentation: Ensure that users involved in production planning are trained on the scheduling functionalities and understand how to manage overlaps and constraints effectively.
  
  
  By addressing the underlying causes and adjusting the relevant settings, you should be able to resolve the C7064 error and maintain the required scheduling for your production operations.