How To Fix MC559 - Restriction has no effect on primary table (see long text)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 559

• Message text: Restriction has no effect on primary table (see long text)

What causes this issue?

In a help view, you specified a selection condition for a field of a
secondary table.

System Response

The base tables of help views are linked with an "outer join".
This means that the entries of the primary table are displayed even if
there is no corresponding record in the secondary tables. Selection
conditions for the secondary table should be understoood in this
context. They do not cause records to be selected from the primary
table.
Selection conditions for secondary tables make sense if there is more
than one record of a secondary table for a record of the primary table
and the selection condition would ensure uniqueness.

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?

Check if the above-described behavior corresponds to what you wanted to
achieve with the selection condition.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC559 - Restriction has no effect on primary table (see long text) ?

  The SAP error message MC559, which states "Restriction has no effect on primary table," typically occurs in the context of reporting or data extraction processes, particularly when working with the SAP Material Management (MM) module or similar areas where data is being filtered or restricted.
  Cause:
  The error usually arises when a restriction (filter) applied to a query or report does not affect the primary table being accessed. This can happen for several reasons:
  
  Incorrect Filter Criteria: The filter criteria specified may not match any records in the primary table, leading to no effect.
  Data Model Issues: The relationship between the tables in the data model may not be correctly defined, causing the filter to be ineffective.
  Table Joins: If the primary table is joined with other tables, the filter may not be applied correctly due to the join conditions.
  Aggregation Issues: If the query is aggregating data, the filter may not apply to the aggregated results.
  Data Inconsistencies: There may be inconsistencies or missing data in the primary table that prevent the filter from having any effect.
  
  Solution:
  To resolve the MC559 error, consider the following steps:
  
  Review Filter Criteria: Check the filter criteria you are using. Ensure that they are correctly defined and that they should logically restrict the data in the primary table.
  Check Data Relationships: Verify the relationships between the tables in your data model. Ensure that the primary table is correctly linked to any other tables involved in the query.
  Examine Joins: If your query involves joins, review the join conditions to ensure they are set up correctly and that they allow the filter to be applied.
  Test with Different Filters: Try using different filter criteria to see if the error persists. This can help identify if the issue is with specific filter values.
  Check for Data Issues: Look for any data inconsistencies or missing records in the primary table that might be causing the filter to have no effect.
  Consult Documentation: Review SAP documentation or help resources for any specific guidance related to the tables and queries you are working with.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like SE11 for Data Dictionary, SE80 for Object Navigator) to analyze the table structures and relationships.
  Debugging: If you have access to debugging tools, consider using them to trace the execution of the query and see where the restriction is failing to apply.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.