How To Fix AQV500 - Only one link can be an outer join

AQV500 - Overview

• Message type: E = Error

• Message class: AQV - Message texts for SAP Query

• Message number: 500

• Message text: Only one link can be an outer join

What causes this issue?

If more than two tables are involved in a table join, a link with a
left outer or a right outer join may only occur once.

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?

Error message extract from SAP system. Copyright SAP SE.

AQV500 - Details

• The SAP error message AQV500, which states "Only one link can be an outer join," typically occurs in the context of query design in SAP BW (Business Warehouse) or when working with SAP Query. This error indicates that there is an issue with the way joins are defined in your query, specifically that you are trying to use multiple outer joins in a way that is not supported.
  
  Cause:
  
  Multiple Outer Joins: The error arises when you attempt to create more than one outer join in a single query. In SQL, an outer join is used to include records from one table even if there are no matching records in the other table. However, in certain contexts, such as SAP BW queries, only one outer join is allowed to maintain the integrity of the data retrieval process.
  Query Design: The way the query is structured may inadvertently lead to multiple outer joins being