For the subjected error I have checked 2-3 threads but couldn't find the root cause of my issue.
I have packed 2 materials in packaging material (HU) and performed IBD. In /SCWM/PRDI I can see my HU with 2 materials and I am able to perform the Warehouse task. When I try to create, I get the above error.
But when I manually give the storage type and Bin(9010, GR-ZONE) task is getting created and WO confirmation as well. The same goes for 9010 to 8010.