How To Fix MC734 - Selection condition & for field &-& not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 734

• Message text: Selection condition & for field &-& not allowed

What causes this issue?

The comparision value specified in a selection condition could not be
interpreted.

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?

Only numbers of type integer (sign at the beginning) or string
constants in apostrophes (') may be entered as comparison values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC734 - Selection condition & for field &-& not allowed ?

  The SAP error message MC734 ("Selection condition & for field &-& not allowed") typically occurs in the context of reporting or data selection in SAP, particularly when using the MC (Material Management) module. This error indicates that there is an issue with the selection criteria defined for a report or transaction, specifically that the selection condition for a particular field is not valid.
  Cause:
  
  Invalid Selection Condition: The selection condition specified for a field is not allowed. This could be due to using an incorrect operator or a combination of fields that do not logically fit together.
  Field Compatibility: The field you are trying to use in the selection criteria may not support the type of selection condition you are applying (e.g., using a range where only single values are allowed).
  Data Type Mismatch: The data type of the field may not match the type of value you are trying to use in the selection condition.
  Custom Fields: If you are using custom fields or enhancements, there may be restrictions on how these fields can be used in selection conditions.
  
  Solution:
  
  Review Selection Criteria: Check the selection criteria you have defined for the report or transaction. Ensure that the conditions are valid for the fields you are using.
  Use Valid Operators: Make sure you are using the correct operators (e.g., =, <>, >, <, etc.) that are allowed for the specific field.
  Check Field Properties: Look at the properties of the field in the data dictionary (SE11) to understand what types of selection conditions are allowed.
  Simplify Conditions: If you are using complex conditions, try simplifying them to see if the error persists.
  Consult Documentation: Refer to SAP documentation or help resources for the specific transaction or report you are using to understand the valid selection conditions.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered and gather more context.
  
  Related Information:
  
  Transaction Codes: This error can occur in various transaction codes related to reporting in the Material Management module, such as MC.1, MC.2, etc.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Exits and Enhancements: If you are using user exits or enhancements, review the code to ensure that it is not interfering with the selection conditions.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.