When you run out space in a rule set, getting message ACF70044 RULE RECORD LARGER THAN MAXIMUM
SIZE ALLOWED - COMPILER TERMINATING, you can use NEXTKEY to increase the overall rule set.
How many levels of NEXTKEY are allowed within a dataset access rule?
You are allowed 25 levels of nested NEXTKEY rules. If you go beyond that limit you will get message:
ACF99067 ACF2, NEXTKEY EXCESSION, CHECK RULE - LAST KEY WAS key