How To Fix AD844 - Conversion/ADD FIELDS for table with long raw field not allowed

AD844 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 844

• Message text: Conversion/ADD FIELDS for table with long raw field not allowed

What causes this issue?

Conversion by means of adding fields is not possible for tables with a
LONGRAW field. The reason for this is that such fields must always be
at the end of the table. Adding fields would violate this condition.

System Response

Action could not be carried out.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD844 - Conversion/ADD FIELDS for table with long raw field not allowed ?

  The SAP error message AD844 indicates that there is an issue with the conversion or addition of fields in a table that contains a long raw field. This typically occurs during database operations, such as when trying to modify a table structure that includes a long raw data type, which is not supported in certain contexts.
  
  Cause:
  
  Long Raw Field: The presence of a long raw field (e.g., BLOB or CLOB data types) in the table can restrict certain operations, such as adding or converting fields.
  Database Limitations: Some databases have limitations on how long raw fields can be handled, especially in terms of schema changes.
  Data Dictionary Changes: Attempting to make changes to the data dictionary (like adding fields) that involve long raw fields can trigger this error.
  
  
  Solution:
  
  Avoid Long Raw Fields: If possible, consider redesigning the table to avoid using long raw fields. Use alternative data types that are more manageable within the