tpm1 valuation

Hi,

Presently we have 100 fixed interest bonds. we want to valuate for compare with market price and purchase price.

When i run TPM1 the following error was appeared.

No book value exists for the position

Where to maintain the Market Prices

For Example at the time of Purchase Price % was 105.13

At the time of valuation date Price % is 106.14

The bonds are not listed any exchanges.

please advice me

With regards

raju