How To Fix C7039 - Cannot keep within time constraint

C7039 - Overview

• Message type: E = Error

• Message class: C7 - Scheduling

• Message number: 039

• Message text: Cannot keep within time constraint

What causes this issue?

When carrying out scheduling, the system could not keep the time
constraint which you entered for the activity.

System Response

Given this situation, if you carry out backward scheduling, you will
get a negative total float.

How to fix this error?

Check the time constraints entered for the activity.
Check the basic dates for the network in the network header.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C7039 - Cannot keep within time constraint ?

  The SAP error message C7039, "Cannot keep within time constraint," typically occurs in the context of scheduling or planning within SAP systems, particularly in production planning (PP) or project systems (PS). This error indicates that the system is unable to meet the specified time constraints for a particular operation, task, or process.
  Causes:
  
  Resource Availability: The resources (machines, labor, etc.) required for the operation may not be available within the specified time frame.
  Capacity Constraints: The production capacity may be insufficient to meet the demand within the required time.
  Scheduling Conflicts: There may be overlapping tasks or operations that prevent the system from scheduling the operation within the desired time.
  Incorrect Time Settings: The time settings for the operation, such as lead times, setup times, or processing times, may be incorrectly configured.
  Dependencies: There may be dependencies on other tasks or operations that are not being met, causing delays.
  
  Solutions:
  
  Check Resource Availability: Ensure that the necessary resources