How To Fix QP291 - Dynamic modification rule &1 is only possible for optional characs

SAP Error Message - Details

• Message type: E = Error

• Message class: QP - Message IDs for function module group QPAA

• Message number: 291

• Message text: Dynamic modification rule &1 is only possible for optional characs

What causes this issue?

You want to dynamically modify a characteristic that is not a required
characteristic using a dynamic modification rule, or the system has set
this dynamic modification rule for the inspection characteristic as a
default value based on the entries in the task list header. However,
you cannot dynamically modify an optional characteristic

System Response

If you are in change mode, the system automatically cancels the dynamic
modification rule specification in the inspection characteristic.

How to fix this error?

Check whether this inspection characteristic should be a required
characteristic, and if necessary, change the control indicator of the
inspection characteristic.
Manually cancel the dynamic modification rule specification, if you are
in change mode and the inspection characteristic should be an optional
characteristic.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QP291 - Dynamic modification rule &1 is only possible for optional characs ?

  The SAP error message QP291 indicates that there is an issue with a dynamic modification rule in the context of quality management (QM) or characteristics in the SAP system. Specifically, this error occurs when you attempt to apply a dynamic modification rule to a characteristic that is not defined as optional.
  Cause:
  The error arises when:
  
  You are trying to use a dynamic modification rule for a characteristic that is mandatory or not set as optional.
  The configuration of the characteristic does not allow for dynamic modification, which is typically reserved for optional characteristics.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Characteristic Settings:
  
  Go to the characteristic configuration in the SAP system.
  Verify if the characteristic in question is set as optional. If it is not, you may need to change its settings to make it optional if that aligns with your business requirements.
  
  
  
  Modify Dynamic Modification Rules:
  
  Review the dynamic modification rules you have set up. Ensure that they are only applied to characteristics that are defined as optional.
  If necessary, create new rules that are applicable to the correct characteristics.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on how to properly configure dynamic modification rules and characteristics.
  
  
  
  Testing:
  
  After making changes, test the configuration to ensure that the error no longer occurs and that the dynamic modification rules work as intended.
  
  
  
  Seek Help from SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance.
  
  
  
  Related Information:
  
  Dynamic Modification Rules: These are rules that allow for the dynamic adjustment of characteristics based on certain conditions or values. They are often used in quality management to ensure that the right checks are applied based on the context of the inspection.
  Characteristics in SAP QM: Characteristics can be defined as mandatory, optional, or not relevant, and their configuration impacts how they can be used in inspections and quality processes.
  SAP Notes and Community: Check SAP Notes for any known issues or updates related to this error message. The SAP Community forums can also be a valuable resource for finding solutions shared by other users.
  
  By following these steps, you should be able to address the QP291 error and ensure that your dynamic modification rules are correctly configured.