How To Fix MC811 - Join condition for &-& contains lowercase letters

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 811

• Message text: Join condition for &-& contains lowercase letters

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MC811 - Join condition for &-& contains lowercase letters ?

  The SAP error message MC811 indicates that there is an issue with the join condition in a query or report, specifically that it contains lowercase letters. This is a common issue in SAP BW (Business Warehouse) or SAP ERP systems when dealing with InfoObjects or data sources that require specific naming conventions.
  Cause:
  The error occurs because SAP requires that certain identifiers, such as InfoObjects, be defined using uppercase letters. If the join condition in your query or report includes lowercase letters, SAP will throw this error to enforce its naming conventions.
  Solution:
  To resolve the MC811 error, you should:
  
  
  Check the Join Condition: Review the join condition in your query or report. Look for any identifiers (like InfoObjects, fields, or variables) that are written in lowercase.
  
  
  Modify Identifiers: Change any lowercase letters in the join condition to uppercase. For example, if you have a join condition like salesOrder = salesorder, change it to salesOrder = SALESORDER.
  
  
  Save and Re-run: After making the necessary changes, save your query or report and try to execute it again to see if the error is resolved.
  
  
  Related Information:
  
  
  Naming Conventions: Familiarize yourself with SAP's naming conventions for InfoObjects and other identifiers. Typically, SAP recommends using uppercase letters for all identifiers to avoid such issues.
  
  
  Documentation: Refer to SAP documentation or help resources for more information on naming conventions and best practices when working with queries and reports.
  
  
  Testing: After making changes, it’s a good practice to test the query or report thoroughly to ensure that it functions as expected without any further errors.
  
  
  By following these steps, you should be able to resolve the MC811 error and successfully execute your query or report in SAP.