How To Fix DMCLG825 - Reading type 1 (access plan) not allowed for POOL- und CLUSTER tables

DMCLG825 - Overview

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 825

• Message text: Reading type 1 (access plan) not allowed for POOL- und CLUSTER tables

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

DMCLG825 - Details

• The SAP error message DMCLG825 indicates that there is an attempt to read data from a pool or cluster table using a reading type that is not permitted. This typically occurs when the system tries to access data in a way that is incompatible with the structure of pool or cluster tables.
  
  Cause:
  
  Reading Type Mismatch: The error arises when a reading type (like type 1, which is often used for accessing standard tables) is used for pool or cluster tables. Pool and cluster tables are special types of tables in SAP that are designed to store data in a more compact form, and they have specific access methods.
  Incorrect Access Method: The access plan being used does not support the reading type for the specific table type. Pool and cluster tables require specific access methods that are different from standard tables.
  
  
  Solution:
  
  Check Access Method: Ensure that the access method being used is appropriate