You can use the function VERSYMB to view these locks.

How APLLCK table can be cleared? As I see, the locks stay there for a different purpose - will guess - interrupted user session, server breakdown etc. As we found out - many users do not use Sage log off functionality - but close browser. Probably - it will leave locks on records as well. 

From a line in the grid of the VERSYMB function you can jump-to the user minitor and terminate the "phantom" session. You can as well purge the table using various tools but I advise you to contact your integrator or customer care for detailed instructions.

I know this is an old thread. What I found is that on VERSYMB, we only see 300 some lines. but we have 14K records in the APLLCK table. Is there a way to safely clear them out?

Necroposting from google search.

Same question as Mike Tsai

From VERSYMB (Locked Symbol), it is said this table record was locked.

When I checked the APLLCK table:

How do I identify if it is or is not locked?

For reference, it also keeps lock details from the past.