How To Fix ES003 - Specify a pool name beginning with M_

ES003 - Overview

• Message type: E = Error

• Message class: ES - ABAP Workbench: Repository Information System

• Message number: 003

• Message text: Specify a pool name beginning with M_

What causes this issue?

If a matchode has matchcode IDs which are not database views, a pooled
table is created with the naming convention MC_<matchcode name>.

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?

Either select generically with MC_*<...> or MC_+<...>, or specify a
full name, e.g. MC_DEBI.

Error message extract from SAP system. Copyright SAP SE.

ES003 - Details

• The SAP error message ES003, which states "Specify a pool name beginning with M", typically occurs in the context of SAP ABAP programming, particularly when dealing with memory management and internal tables. This error indicates that the system expects a memory pool name that starts with "M".
  
  Cause:
  
  Incorrect Pool Name: The error is triggered when a pool name that does not conform to the expected naming convention (i.e., not starting with "M_") is specified in the code.
  
  Configuration Issues: There may be a misconfiguration in the memory management settings or the way memory pools are defined in the system.
  
  
  Solution:
  
  
  Check Pool Name: Review the code where the pool name is defined. Ensure that the name starts with "M_". For example, if you have defined a pool name as myPool, change it to M_myPool.
  Example:
  DATA: lt_my_table TYPE TABLE OF my_type.
  DATA: lt_M_my_table TYPE TABLE OF my_type. " Correct naming
  
  
  Review Documentation: Consult the SAP documentation or help