Yes, you may certainly submit CPEs for obtaining your CCSK to (ISC)2 and or ISACA.
ISACA: CPE credits can be applied toward each ISACA designation that is held.
(ISC)2: Members may submit up to 30 CPEs under the self-study category for the time spent preparing to obtain a new certification. If the activity relates to the domains of your certification, you may submit under Group A. If the activity is not domain related, but is professional development, you may submit under Group B.
We provide our learners with a certificate indicating 24 CPEs for our 3 Day CCSK Plus session, however there is a bonus on demand component including hours of self-preparation.
As well, keep in mind-the CCSK can be substituted for one year of experience in pursuit of the (ISC) 2 CCSP Certification.
CCSK X CCSP Cloud Security Certification Training Week - Intrinsec (intrinsecsecurity.com)