SAP Message 5U015 - You have specified too much for & & - delete or change existing record

Diagnosis
The system has calculated the total amount of bonds that you haveentered, and compared it to the value stored in the Infotype 0103(BondPurchase). It has found that you
have entered more than is necessary. To correct this, please
either delete some of the records, or change the number of bonds fieldon the records.