It is a common requirement for a client to be able to customise the number sequence associated to a record. This allows a business to; easily identify records, enable business centric reporting & ensure the volume of records with a unique identifier can be generated in line with the businesses needs.
This functionality is available across Project Operations, see examples such as: msdyn_partynumber & msdyn_projectnumber
However, the same customisations cannot be applied to the Subcontract & Subcontract line records.
The suggestion is enable users to add the fields: Subcontract Number (msdyn_subcontractnumber) & Subcontract Line ID (msdyn_subcontractlinenumber) - to solutions & enable customisation to allow users to define their own number sequences on the Subcontract & Subcontract Line level.