I have created an inbound IDoc using Tcode WE19. I selected message type HRMD_A, IDOC Type HRMD_A05 and for Info Type 0000 and entered all the details. I clicked on the Inbound Function Module and selected IDOC_INPUT_HRMD. Now, when I check the status using Tcode WE02, I see that it shows status code 51. Not sure what I'm missing. I would really appreciate if somebody could give me step by step instructions on how to fix this issue.