How To Fix MC680 - Projection views may not contain more than one table

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 680

• Message text: Projection views may not contain more than one table

What causes this issue?

Projection views are used to mask fields out of a table. A
projection view may therefore contain only one primary table.

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?

Change the view type or remove the secondary tables.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC680 - Projection views may not contain more than one table ?

  The SAP error message MC680, which states "Projection views may not contain more than one table," typically occurs in the context of SAP's data modeling and reporting tools, particularly when working with projection views in the context of the SAP BW (Business Warehouse) or SAP HANA environments.
  
  Cause:
  The error arises when you attempt to create or use a projection view that includes more than one table. Projection views are designed to represent a single table or a specific subset of data from a single table. When you try to include multiple tables in a projection view, the system generates this error because it violates the fundamental design principle of projection views.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the View Definition: Check the definition of the projection view you are trying to create or use. Ensure that it only references a single table.
  
  
  Create Separate Views: If you need to