INV_LABEL_PUB.print_label-For p_transaction_id what value to pass to insert into Label History tabl

Dear Experts

Application # R12.2.7
DB # Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
         PL/SQL Release 12.1.0.2.0 - Production 

Could anyone please let me know, whether you have any idea what parameter value we have pass for transaction_id to create Label(material)/record through this API in wms_label_requests_hist table.


INV_LABEL_PUB.print_label

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set serveroutput on
declare
l_return_status varchar2(1);
l_msg_count NUMBER;
l_msg_data VARCHAR2(4000);
l_label_status VARCHAR2(100);
p_txn_id INV_LABEL_PUB.transaction_id_rec_type ;

begin

p_txn_id(1) := 0 ; -- transaction_id

dbms_output.put_line ('Calling API INV_LABEL_PUB.print_label') ;