How To Fix AQ419 - Join definition has errors; check the definition

AQ419 - Overview

• Message type: E = Error

• Message class: AQ - Message texts for SAP Query

• Message number: 419

• Message text: Join definition has errors; check the definition

What causes this issue?

An unauthorized ON condition was defined when defining the join. This
was caused by an error in the graphical join control. You must remove
this ON condition.
An unauthorized ON condition occurs when the field of one table is
linked to another table with two different fields.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AQ419 - Join definition has errors; check the definition ?

  The SAP error message AQ419, which states "Join definition has errors; check the definition," typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when there is an issue with the definition of a join in a query or data model. This error indicates that there is a problem with how the tables or data sources are being joined together, which can prevent the query from executing properly.
  Causes:
  
  Incorrect Join Conditions: The join conditions specified may not be valid. This could be due to incorrect field names, data types that do not match, or logical errors in the join criteria.
  Missing Fields: One or more fields that are required for the join may be missing from the data model or query definition.
  Ambiguous Joins: If there are multiple paths to join the same tables, it can create ambiguity, leading to errors.
  Data Source Issues: The underlying data sources may have issues,