How To Fix /IWBEP/CM_V4_MED145 - Invalid MaxLength value '&1' for property '&2' on entity type '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 145

• Message text: Invalid MaxLength value '&1' for property '&2' on entity type '&3'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED145 - Invalid MaxLength value '&1' for property '&2' on entity type '&3' ?

  The SAP error message /IWBEP/CM_V4_MED145 indicates that there is an issue with the MaxLength value defined for a property in an OData service. This error typically arises when the MaxLength value specified for a property exceeds the allowed limit or is not valid for the entity type in question.
  Cause:
  
  Invalid MaxLength Value: The value specified for MaxLength is either negative, zero, or exceeds the maximum limit allowed by the underlying data type in the database.
  Mismatch in Metadata: The metadata definition for the OData service may not align with the actual data model or database schema.
  Data Type Constraints: The data type of the property may have inherent constraints that are not being respected in the OData service definition.
  
  Solution:
  
  
  Check the MaxLength Value: Review the MaxLength value defined for the property in the OData service metadata. Ensure that it is a positive integer and does not exceed the maximum length allowed for the data type in the database.
  
  
  Update the Metadata: If the MaxLength value is incorrect, update the OData service metadata to reflect the correct value. This can typically be done in the service definition or the underlying data model.
  
  
  Review Data Model: Ensure that the data model in the backend (e.g., database table definitions) matches the OData service definitions. If there are discrepancies, adjust the OData service or the database schema accordingly.
  
  
  Regenerate the OData Service: If changes are made to the underlying data model or metadata, it may be necessary to regenerate the OData service to ensure that the changes are reflected.
  
  
  Test the Changes: After making the necessary adjustments, test the OData service to ensure that the error no longer occurs and that the service behaves as expected.
  
  
  Related Information:
  
  OData Service Metadata: The metadata for an OData service can usually be accessed via a URL (e.g., http://<service-url>/$metadata). This will provide insights into the properties and their constraints.
  SAP Notes and Documentation: Check SAP Notes for any known issues or updates related to this error message. SAP's official documentation on OData services may also provide additional context and troubleshooting steps.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SEGW (Gateway Service Builder) to access and modify the OData service definitions.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly.