The category is a letter, it depends on the type of cost center.
CategoryWP2PF2

F

Direct production cost centers - all cost centers related to workshops - codification : PPPP-1xxxPlant cost sections related to direct production costs
H

Other cost centers started with the plant code but not direct production

Plant cost sections related to indirect production costs, such as:

  • Other fixed costs not included in inventory value (e.g.: warehousing, commercial shipping, engineering,…)
  • Variable costs not included in inventory value (e.g.: tolling on raw materials).
W
All cost centers starting with the company codeAll other cases
E
Exceptional category used in the USA for tax purpose "Vertex" (thus limited to companies in the USA and duly justified by the controller)

Other categories are historically present in SAP. They can no longer be used