NK21 is a SAP tcode coming under CRM module and BBPCRM component. View some details about NK21 tcode in SAP.
- NK21 tcode used for : IS-H: Dun Insurance Verification in SAP
- Module : CRM (Customer Relationship Management)
- Parent Module : CRM (Customer Relationship Management)
- Package : NPAS (Application development patient accounting system)
- ABAP Program : RNNKOS10

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Definitions
What is SAP ?SAP is the short form of Systems, Applications & Products in Data Processing. It is one of the largest business process related software. This software focused on business processes on ERP & CRM.
What is transaction code in SAP?Transaction code shortly known as tcode, is a shortcut code to access different functional areas in SAP. It avoid users from long menu path to reach a report. Instead of that users can type the corresponding transaction code and press enter, the corresponding SAP page will load. It’s a good practice to remember or note down the transaction codes that we need to use in our regular work.
NK21 related transaction codes
| Tcode | Note |
|---|---|
| NK21 | IS-H: Dun Insurance Verification |
| FOCP_RADJ_DUNMOD_VAL | Corr. Differ. Char: Rent Adj. Dun. |
| LEMA | Dun long-term vendor decl. (vendor) |
| OBMD | C FI Selec.Variants Dunning/Dun.line |
| FPARM0 | Define FICA Dun. Archiving Runtime |
| FQM4 | FI-CA Dunning-Cust.Dun. Charges Type |
| FQM7 | FI-CA Dunning - Cust.Dun.Level Types |
| VYM10 | Contract Dun. Status |
| /SAPSLL/PREVDI_04 | Dun Vendor Declarations (EU) |
| /SAPSLL/PREVDI_12 | Dun Vendor Declarations (NAFTA) |
| MRBP | Invoice Verification in Background |
| MRM0 | Logistics Invoice Verification |
| M806 | Message Types (Invoice Verification) |
| M808 | Message Schema (Inv. Verification) |
| OLMR | IMG Invoice Verification |