SAP Message /MAP/CUST003 - &1 index for table &2 with fields &3 does not exist (see long text)

Diagnosis
When reading the master data, no suitable index for optimum access tothe master data table was found for the relevant database table.This can have a negative effect on performance if there is a highvolume of data.

Procedure
For optimum read access, create the following index to the followingtable:
Table &V2&
Index &V1&
Index fields: &V3&