2032537 - FPSEC1: error message >0 037 Formal error: Document header does not have a reconciliation key

In transaction FPSEC1 the error message ">0 037 Formal error: Document header does not have a reconciliation key" is raised.                                         

FI-CA - Contract Accounts Receivable and Payable

>0037, Formalfehler: Belegkopf ohne Abstimmschlüssel, Formal error: Document header does not have a reconciliation key,  FIKEY_PRUEFEN, LFKB0FF0, event 1113,                                 , KBA , XX-PROJ-FI-CA , obsolete: Please use Component FI-CA instead , IS-U-CA , Contract Accounts Receivable and Payable , IS-T-CA , Contract Accounting , FS-CD , Collections and Disbursements , IS-PS-CA , Public Sector Contract Accounting , IS-M-CA , Contract Accounts Receivable and Payable , FI-CAX , Non-industry specific contract accounts receivable, payable , Problem