How To Fix OD421 - Error when reading USR01.

OD421 - Overview

• Message type: E = Error

• Message class: OD - IS-Oil: TSW Traders' and Schedulers' Workbench messages

• Message number: 421

• Message text: Error when reading USR01.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OD421 - Error when reading USR01. ?

  The SAP error message OD421, which indicates an issue when reading the USR01 table, typically relates to problems with user master records in the SAP system. The USR01 table contains user master data, and errors in accessing this table can arise from various causes.
  Causes of OD421 Error
  
  Database Issues: There may be issues with the database itself, such as corruption or connectivity problems.
  Authorization Problems: The user trying to access the data may not have the necessary authorizations to read from the USR01 table.
  User Master Record Issues: The specific user master record being accessed may be incomplete or corrupted.
  System Configuration: There may be configuration issues in the SAP system that affect how user data is accessed.
  Transport Issues: If recent transports were made that included user data, they may not have been executed correctly.
  
  Solutions to OD421 Error
  
  
  Check User Authorizations: Ensure that the user has the necessary authorizations to access the USR01 table. You