Lines copied from Codeunit 12:

Cust.CheckBlockedCustOnJnls(Cust, GenJnlLine, true);

Vend.CheckBlockedVendOnJnls(Vend, "Document Type", true);

Employee.CheckBlockedEmployeeOnJnls(true);

BankAcc.TestField(Blocked, false);

GLAcc.TestField(Blocked, false);

Cust.CheckBlockedCustOnJnls(Cust, "Document Type", true);

Vend.CheckBlockedVendOnJnls(Vend, "Document Type", true);

Cust.CheckBlockedCustOnJnls(Cust, GenJnlLine2."Document Type"::Payment, true);

Employee.CheckBlockedEmployeeOnJnls(true);

It will be helpful, if you make all these 10 check as the first one where we have access to GenJnlLine in the OnBeforeCheckBlocked Event.

Best regards

Flemming