How To Fix SRET148 - Error during deletion of language '&'. Search engine result '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: SRET - SAP Retrieval : Administration - Indexing - Search

• Message number: 148

• Message text: Error during deletion of language '&'. Search engine result '&'

What causes this issue?

When the index category is deleted, all languages, and consequently all
physical indices on the search server (RFC server) are deleted.
If a physical index could not be deleted, the index category is not
deleted or set to inactive either. This is to prevent the index from
staying on the search server without R/3 inforamtion.

How to fix this error?

Firstly clean up all languages / indexes for which this information
appears.
Use the function to delete an index without R/3 information (if such an
index exists) and / or the function to delete the language without an
index from the R/3 System.
You can then call the function 'Delete index category' again.

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