SQL Connector -limit on field length -unrecognized field ?

Hi,

Connecting into a netweaver system using the SQL Conenctor  ( infoset)

but get an error on the following field

Unrecognized field: /BIC/B0004012000-ZZZZ_COST_CENTRE

Anyone know of a lumira limit on field lengths  ? the field is a CHAR 10

Thanks

Tony