Message type: E = Error
Message class: NI - Document index processing
Message number: 016
Message text: Entry with same key & & & already exists
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NI016
- Entry with same key & & & already exists ?The SAP error message NI016 ("Entry with same key & & & already exists") typically occurs when you are trying to create or update a record in a database table, and the key you are using already exists in that table. This is a common issue in SAP systems, especially when dealing with master data or transactional data entries.
Cause: Duplicate Key Entry: The most common cause of this error is that you are attempting to insert a new record with a key (like a unique identifier) that already exists in the database. Data Migration Issues: If you are migrating data from one system to another, you might inadvertently try to insert records that already exist. Concurrency Issues: If multiple users or processes are trying to create or update the same record simultaneously, it can lead to this error. Incorrect Logic in Custom Code: If there is custom ABAP code or enhancements that handle data
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