DEVELOPER API v12.5.9

New API:

• API Token - Get Token by Client ID and Client Secret

Improvements:

• API Product - List Product
  -Add parameter "ListCategory" in request

• API Category - List Categories
  -Add parameter "Discontinued" in request and response

• API Category - Get a Category by ID
  -Add parameter "Discontinued" in response

Bug Fixing:

• API Invoice Payment - Add Payment
  -Fix wrong result payment date