Object link to PP material/serialnumber combination

Hello,

I am looking for a solution to link a document info record to a material number / serial number combination. This material number / serial number is unique and has a equipment number. In DMS it is possible to link the document to an equipment, but then i have the problem i cannot search for the serial number in DMS which is linked to this equipment. The material/serialnumber is in the table: EQUI / SER05 /

Can we somehow fill in the object link the material / serialnumber combination?

Best regards,

Nick