Please help ! Plant and Material type ---- table T134M

I am getting error message : For plant xxx, material type FERT is not defined in Table T134W

SAP says table T134W has been replaced with T134M

When I do SE16 for table T134M - I can not see my plant xxxx with metarial type FERT

So, how does one update material master or plant settings to ensure assignment of material type FERT to youu plant?

I am getting this error at PGI level

Any guru who can help?