Bex real time query, field not activated for inputs
I'm in an urgent need for your help. I have created a Bex query over an multiprovider based on a real time input cube. I have followed all the steps in the tutorial 'Input Ready Query through BI-Integrated Planning'. But once I launch the report, the input cell is disabled, so I can't put data into it like shown in the attached figure.
Would any one help me to figure out the issue.