customize the next number maintenance in ME 6.0

Hello,

We have the business requirements that for the SFC we need send some material custom data field into the next number rule definition therefore the SFC can generate the values which can be defined in the custom data field.

Do you know whether this is supported by the SAP ME 6.0 SDK?

I checked the API GenerateNextNumber  under NumberingServiceWS, but it seems this is not the right one to customize and get the desired SFC number. do you know what purpose for this API? I tried several times and it is confusing me.

Thanks & regards,

Leon