Successful payment in Paypal Sandbox even without funds

[userlalu]

i am integerating payapal using checkout.js in my php based website but,my personal sand box account have no money but i can transfer money to merchant account.. i want to check some situation like personal account have low  balance/ no fund when transferring  money to merchant account.so, how can i do these..??

[MTS_Justin]

Hello,

If you want to run scenarios like low balance or insufficient funds, you should have two accounts and send the majority of funds from the buyer account to the seller account, leaving just enough to cover one transaction and then conduct the same transaction twice to see the result of a buyer not having sufficient balance. Ensure you also remove any other funding source from the buyer account, so there is no backup funding source available