How To Fix PG502 - Key & already exists

PG502 - Overview

• Message type: E = Error

• Message class: PG - Error Messages for Master Data Programs

• Message number: 502

• Message text: Key & already exists

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?

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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.

Smart SAP Assistant

• What is the cause and solution for SAP error message PG502 - Key & already exists ?

  The SAP error message PG502 ("Key & already exists") typically occurs when you are trying to create a new entry in a database table or a master data record, but the key you are attempting to use already exists in the system. This can happen in various contexts, such as when creating new records in tables, master data, or configuration settings.
  
  Cause:
  
  Duplicate Key: The most common cause is that the key (e.g., a unique identifier like a material number, customer ID, etc.) you are trying to enter is already present in the database.
  Data Migration Issues: If you are migrating data from another system or performing bulk uploads, there may be conflicts with existing records.
  Incorrect Input: The key might have been entered incorrectly, leading to an attempt to create a record that already exists.
  
  
  Solution:
  
  Check Existing Records: Before creating a new record, check the database or the relevant master data to see if