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Form CUD 
Form CUD is used for incomes, as well as for tax and contribution withdrawals. This form is also used for the yearly statement of incomes which are added to those coming from employment or pensioning (e.g. continued coordinated collaboration, alimony for the employee’s/collaborator’s former marriage partners, scholarships, stages, etc.)
Year after year, the changes to form CUD require a high degree of flexibility of the system which calculates it. The system guarantees the yearly update of the form management, with particular care for:
● the new field numbering
● the new fields
● the user exits which guarantee the function's flexibility.
Across years of development and continuous improvements e.g. criteria and solutions have been defined for:
● including the electronic signature
● carrying out the background calculation of totals
● including the changes made through output into the calculation of totals
● checking each field value
● printing the output by selecting each single section
The management of form CUD (employee’s single certification) is achieved through a program which processes data on the basis of a selection screen filled in with data related to the employee(s).
A test calculation may occur before, in order to check errors, outcomes, totals and splittings.
After this check, outcomes are displayed in an ALV list and printed with SAPScript.

ALV (Abap List Viewer) is a standard SAP tool for displaying data lists in a grid with lists and columns. Such tool also provides functions such as filtering, data export, variant management and so on.
