j1ig depot

hi,

i've created -po - (Plant 1000)delivery(nl)-billing jex-excinvoice & migo at depot 2000

but while doing

J1IG i entered mat doc no (of 641- mov type) -excise group of supplying plant

& details button, in the next screen after entering exc int doc no -i'm getting error message material does not exist in document xxxxx 2009 message no 81538

Pl suggest