JCO error : BAPI not found

Hi all,

I am struggling with an error which tells me that a BAPI,  which I can run with the SE37 SAP transaction,  is not found using the JCO MII action block . MII connect to SAP ECC with a communication user who has SAP ALL permissions .  We have several MII apps running SAP JCO action blocks with no problems at all using the same user and connection configuration . When configurating the action ,  I can see a long BAPI list but not the one I need .

How come ¡?

Please help ,  thanks in advance

Note : We are running a 12.2.3 build 167 sp5 MII plataform