Limits for Form Rules and Object Rules

Item Maximum entries
CONDITION 3 valid condition names
DSPFLDS 15 DSPFLDS and FNDFLDS combined
FNDFLDS 15 DSPFLDS and FNDFLDS combined
KEYRNG 13 field names
RELATION 1 valid relation name
RETURNS

1 on a FUNCTION definition

15 on a RULE or SELECT definition

SCRFLDS 5 field names
VALIDITY 3 valid condition names
WINFLDS 40 fields