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Madhuri LondheMadhuri Londhe 

In one batch class, How many batch classes we can call?

Best Answer chosen by Madhuri Londhe
Raj VakatiRaj Vakati
Refer this link  .. there is no absolute limit as long as you are not hitting with limits 


By "stack depth" I presume you mean "chain length"; each start/execute/finish runs in its own transaction and so has its own stack.
I know of no absolute limit: chaining is very kind to the platform because things run in a sequence rather than in parallel. But worth some approximate calculations to see if you will run anywhere near this limit recognizing that each start/execute/finish counts as one of these:

The maximum number of asynchronous Apex method executions (batch Apex, future methods, Queueable Apex, and scheduled Apex) per a 24-hour period 

250,000 or the number of user licenses in your org multiplied by 200, whichever is greater