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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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 =