when i m create INVOICE FB70 I HAVE SOME ERROR POSTING KEY NOT DEFINE

POSTING KEY DEFINE FOR FI ME CHECK ANY FI SEETING FOR T.CODE

Posting key not defined

Message no. F5817

Diagnosis

Service financial accounting: posting keyel "" was not found in the posting key table. There are two possible causes for this:

posting key "" has not been defined in FI customizing

the posting key is supplied incorrectly from the calling application

System Response

System error

Procedure

There are two possible solutions:

define posting keys "" using the FI customizing functions

system error in the calling application - contact the SAP Hotline service.