https://community.sap.com/t5/application-development-and-automation-discussions/error-proxy/m-p/12097292#M1972448 <P>Hello <A href="https://answers.sap.com/users/328997/putrimulia.html">Putri Mulia</A>,</P><P>The error is due to the missing Mandatory Field.</P><P>There is parameter IT_DATAPO for which system is expecting data in it but you have not filled the value for the same hence this error.</P><P>Try to fill the data for IT_DATAPO and execute it should be fine.</P><P>Regards!</P> Tue, 12 Nov 2019 13:57:19 GMT former_member1716 2019-11-12T13:57:19Z https://community.sap.com/t5/application-development-and-automation-discussions/error-proxy/m-p/12097291#M1972447 <P>what means of this error. and what should i do?</P> <P>Error during proxy processing An exception with the type CX_SY_DYN_CALL_PARAM_MISSING occurred, but was neither handled locally, nor declared in a RAISING clause Function call of ZPI_IB_PO failed; the obligatory parameter IT_DATAPO</P> Tue, 12 Nov 2019 12:46:27 GMT https://community.sap.com/t5/application-development-and-automation-discussions/error-proxy/m-p/12097291#M1972447 Former Member 2019-11-12T12:46:27Z https://community.sap.com/t5/application-development-and-automation-discussions/error-proxy/m-p/12097292#M1972448 <P>Hello <A href="https://answers.sap.com/users/328997/putrimulia.html">Putri Mulia</A>,</P><P>The error is due to the missing Mandatory Field.</P><P>There is parameter IT_DATAPO for which system is expecting data in it but you have not filled the value for the same hence this error.</P><P>Try to fill the data for IT_DATAPO and execute it should be fine.</P><P>Regards!</P> Tue, 12 Nov 2019 13:57:19 GMT https://community.sap.com/t5/application-development-and-automation-discussions/error-proxy/m-p/12097292#M1972448 former_member1716 2019-11-12T13:57:19Z