Message Number list used by SAP ABAP Class CL_IACSEARCH_MIME (Find in ITS MIME Objects)
SAP ABAP Class CL_IACSEARCH_MIME (Find in ITS MIME Objects) is using
# Object Type Object Name Object Description Note
     
1 Message Number  S> - 015 Search pattern not found
2 Message Number  S> - 023 Conversion error in MIME object (see long text)