How To Fix PPEACT603 - Object type &4 of &2 is different from object type &3 of &1

PPEACT603 - Overview

• Message type: E = Error

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

• Message number: 603

• Message text: Object type &4 of &2 is different from object type &3 of &1

What causes this issue?

The objects for which you wish to define a sequence are of different
object types. You cannot create a relationship between different object
types, such as between an activity and a grouping activity.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You can create a relationship (sequence relationship) between objects
of the same type only, for example, between grouping activities. You
maintain this relationship on the sequence tab page for the grouping
activities that you wish to link together.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPEACT603 - Object type &4 of &2 is different from object type &3 of &1 ?

  The SAP error message PPEACT603 indicates a mismatch in object types during a process, typically related to the use of different object types in a transaction or operation. This error often occurs in the context of Production Planning or Project System modules, where different object types are expected to be consistent but are found to be different.
  
  Cause:
  The error message PPEACT603 is triggered when the system detects that the object type of a specific object (e.g., a production order, project, or another entity) does not match the expected object type. This can happen due to:
  
  Incorrect Object Assignment: An object (like a production order) is being assigned or referenced incorrectly, leading to a mismatch.
  
  Configuration Issues: There may be configuration settings in the system that are not aligned with the expected object types.
  Data Integrity Issues: There could be inconsistencies in the master data or transactional data that lead to this error.
  User Error: The