SAP Message REB_GENERATOR222 - The number of index fields of secondary index &1 of &2 was limited

Diagnosis
A secondary index for the condition table is generated from the variablekey fields and additional standard fields. The number of index fieldsmust not exceed 16.
The program generates the index by copying the first 10 fields from thevariable key together with the 6 standard fields. Further fields areignored.
This can give rise to minor performance losses but does not affect thecorrectness of the condition table.

Procedure
Check whether the variable key fields were selected correctly for yourrequirements and whether the above restriction suits your needs.