How To Fix PPEACT421 - Fixed times are maintained at &1 &2; the type cannot be changed

PPEACT421 - Overview

• Message type: E = Error

• Message class: PPEACT - Messages for iPPE ACT Application (Activities)

• Message number: 421

• Message text: Fixed times are maintained at &1 &2; the type cannot be changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPEACT421 - Fixed times are maintained at &1 &2; the type cannot be changed ?

  The SAP error message PPEACT421 indicates that there are fixed times maintained for a specific activity or operation in the system, and as a result, the type of that activity cannot be changed. This typically occurs in the context of production planning or project management within SAP, where activities are defined with specific parameters.
  
  Cause:
  
  Fixed Times Defined: The error arises when there are fixed times (e.g., setup times, processing times) associated with the activity or operation in question. These fixed times are likely defined in the routing or work center.
  Type Change Attempt: The user is attempting to change the type of the activity (e.g., from a specific operation type to another) while fixed times are still associated with it.
  
  
  Solution:
  
  Review Fixed Times: Check the routing or work center associated with the activity to see what fixed times are defined. You can do this by navigating to the relevant transaction (e.g., CA01 for